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Research
Areas
Modern
solid state physics goes far beyond a phenomenological description
and bases the understanding of solid state properties and phenomena
on atomistic theories. To obtain information about the atomic structure
of solids, probes with sub-nanometer spatial resolution are needed.
To study the excitation spectra, an appropriate energy resolution
is necessary in addition. All these requirements can be met by scattering
methods. In this sense, scattering methods provide the basis of
our present understanding of the structure, excitations and phase
transitions of condensed matter on a microscopic level.
At
the Institute for Scattering Methods (ISM), synchrotron x-ray scattering
and neutron scattering are employed for the investigation of condensed
matter on an atomistic microscopic level. The emphasis lies on exploiting
fully the complementarity of the two probes. Besides the application
of scattering methods to solid state problems, major activities
are concentrated on the methodology. This includes the further development
of experimental techniques by improving instrument components and
data treatment algorithms, the development of new experimental methods
and the corresponding instruments and the development, construction
and operation of scattering instruments at large-scale facilities.
At present, ISM operates five instruments at the research reactor
DIDO of the Research Center Jülich and two instruments at the
Hamburger Synchrotronstrahlungslabor HASYLAB. In addition, we participate
in the operation of a sector at the Advanced Photon Source APS in
Argonne, USA. These instruments are open for the use by external
groups from universities, research centers and industry. The instrument
responsibles from ISM provide scientific and technical support during
the experiment and the data processing. In order to secure the future
of European neutron research, ISM made a strong commitment to the
European Spallation Source project. Besides development of novel
instrument concepts, ISM took the lead in research and development
for the "heart of the ESS", the target and moderator block.
ISM
is open for all research areas in condensed matter science, where
scattering methods can be applied. At present, the research activities
are concentrated in the fields: "solid state magnetism", "correlated
electron systems", "magnetic nanostructures", "structural and magnetic
disorder", "novel materials" and "ultrathin liquid films". For the
purpose of this research, ISM is also engaged in sample preparation
(e.g. by molecular beam epitaxy and single crystal growth) and characterisation
(e.g. resistivity, AC and DC susceptibility and magnetisation measurements).
Highly
Correlated Electron Systems
Certain
materials, in particular transition metal oxides, exhibit marked
deviations from a simple Fermi-liquid behaviour of the electronic
system. Strong electronic correlations lead to macroscopic quantum
phenomena and the systems exhibit a strong competition between several
degrees of freedom. A prominent example is provided by colossal
magneto-resistance (CMR) manganites, e. g. La1-xSrxMnO3.
In a cooperation with RWTH Aachen, a series of high quality single
crystals have been grown with compositions close to x = 1/8
(low doping regime). In these crystals, various ordering phenomena
occur, such as charge ordering, orbital ordering, spin ordering
and lattice distortions. The interplay of these ordering phenomena
can be studied by a combination of different scattering methods:
scattering of high energy x-rays with E > 100 keV, anisotropic
anomalous x-ray scattering at the Mn-K-edge and neutron scattering.
For the latter, polarisation analysis is employed to clearly separate
magnetic from lattice contributions. The nature of the charge- and
orbital ordering in the intriguing ferromagnetic insulating ground
state was comprehensively investigated by resonant x-ray scattering.
For the first time, a novel superstructure was identified and intensively
characterised. In addition, a x-ray induced switching between charge
ordered and disordered states could be observed. In contrast to
observations by other groups, our effect was entirely reversible.
These results will have a significant impact on the understanding
of the exotic electronic properties of these compounds.
Bulk
Magnetism
The
elementary excitations in 3D-antiferromagnets are well described
by linear spin wave theory, which assumes purely transversal modes.
In neutron scattering experiments using polarisation analysis, we
were able to separate for the first time the spectra of transverse
and longitudinal magnetic fluctuations for the model system MnF2.
The energy spectrum of longitudinal fluctuations is continuous and
extends to about twice the frequency of the zone boundary modes.
Longitudinal fluctuations result from non-linear processes due to
multimagnon scattering. The dynamic magnetic response due to two
magnon creation or annihilation is separated by a gap centered near
the spin wave frequency from the central peak corresponding to neutron-magnon
scattering. The observed longitudinal spectra are in qualitative
agreement with the theory for two magnon processes (see detailed
report).
A
phenomenological description of the sublattice magnetisation over
a wide range of temperature has been proposed by using simple power
laws for the low temperature behaviour and the critical behaviour.
The low temperature behaviour clearly deviates from the predictions
by Bloch (see detailed report). Of particular interest in this context
are the transition metal carbonides CuCO3 and NiCO3,
which have been synthesised by hydrothermal synthesis. These compounds
show weak ferromagnetism, i. e. a coexistence of ferromagnetic and
antiferromagnetic ordering.
Thin
Film Systems
Research
is ongoing on thin soft matter films, in particular in confined
geometry and magnetic thin film systems. X-ray scattering under
grazing incidence could be performed on confined polymers. Self-organisation
of the polymer molecules under confinement is significantly different
compared to non-confined thin films. The effect depends strongly
on pressure, temperature and the number of polymer molecule layers.
For thin magnetic films, we have continued the investigation of
the Er/Tb multilayer for films of various thicknesses of the two
components. A phase diagram as the function of film thickness could
be established. By means of resonant x-ray scattering, a spin density
wave of the conduction band electrons could be observed in the Er20/Tb5
sample. Thus, the element and band specificity of resonant magnetic
x-ray scattering allows us to directly observe the coupling mechanism
of the 4f-electrons in the Er-layers via the 5d-conduction band
electrons (see detailed report). Magnetic multilayer systems are
one-dimensional artificial structured magnetic systems. To explore
the effect of an artificial structuring in a second dimension, we
have produced a Fe/Cr/Fe multilayer, in which the last Fe-layer
was structured into a regular grating by means of electron beam
lithography and ion beam edging (collaboration with ISG). Applying
an external field to this laterally structured multilayer, a competition
arises between dipolar energy, Zeeman energy and exchange energy
through the multilayer stack. Our aim is to understand the interaction
between the magnetic nanostructures in detail. Polarised neutron
scattering under grazing incidence has been measured on the HADAS
reflectometer and shows that the domain pattern is significantly
changed due to the lateral structuring (see detailed report). Bulk
manganese has a very complicated magnetic structure. As an epitaxial
thin film, a body centered tetragonal structure can be stabilised.
To study the magnetic structure of this new phase of manganese,
neutron reflectometry measurements on a Fe/Mn/Fe trilayer have been
performed. These measurements indicate the existence of a net magnetic
moment inside the 8 Å Mn layers. However, with neutrons, only
a sensitivity in space can be achieved. We employed the technique
of resonant soft x-ray magnetic scattering and could verify that
the ferromagnetic moment is indeed intrinsic to the body-centered
tetragonal manganese phase. In a Fe/Cr/Fe trilayer, the optical
potential is such that for one neutron spin state, a quantum well
structure is formed. With grazing incidence neutron scattering,
we could observe a second order resonance where the amplitude of
the wave-function is strongly amplified at the Fe/Cr interfaces,
which enhances the sensitivity to magnetic roughness. Finally, with
the new focusing small-angle camera KWS-3, ordering in a ferrofluid
in an external field could be observed for the first time (collaboration
with PNPI, Gatchina, and MPI, Stuttgart). The ferromagnetic particles
align in chains oriented along the field (see detailed report).
Research
and Advanced Materials
Scattering
methods are applied for a wide range of novel materials or materials
with particularly interesting properties. An example is the investigation
of three-dimensional networks of platinum nanoparticles separated
by organic spacer molecules (cooperation with MPI für Kohlenforschung)
with the anomalous x-ray scattering method. The mechanism for synthesis
of these networks could be elucidated. Another example is the research
on novel storage phosphor and neutron converter materials for the
use in neutron image plates. It could be shown that mixed LiF +
KCl: Eu2+ features a significantly higher neutron over
g signal ratio compared to commercial available neutron image
plates. The research on amorphous silicon-germanium alloys relevant
for solar cell technology has been continued (together with Colorado
School of Mines). Samples with a hotwire preparation technique using
a small deposition rate showed a significantly reduced amount of
Ge inhomogeneities on a length scale smaller 10 nm. In cooperation
with the University of Liège, Belgium, we investigated a
thermoelectric material - with Tl filled Sb Skutterudite. By measuring
the phonon density of states we could demonstrate that Tl behaves
as an Einstein oscillator with 5 meV excitation energy. Phonon scattering
from the local and incoherent Tl modes gives rise to the strongly
reduced thermal conductivity.
Research
and Development for the European Spallation Source project ESS
The
Forschungszentrum Jülich has taken a leading role in the research
and development for a future next generation MW neutron source,
the European Spallation Source ESS. The Institute for Scattering
Method is developing innovative instrument concepts and is heavily
engaged in research on target window materials, novel neutron moderators
and the target-moderator arrangement. In particular, the embrittlement
of candidate structure materials for spallation devices by implanted
helium was studied in detail. It was found that the embrittlement
of austenitic stainless steel by implanted helium is significantly
lower than of martensitic steels. FATIMA, a piezo-driven fatigue
test machine simulating the pulse stresses appearing in the ESS
target container, has been built and operated showing that pulse
stress in the relevant range can be generated. Measures for the
minimisation of erosion of target window materials due to cavitation
following short proton pulses of high energy density were studied.
Finally, in a search for an innovative cold moderator, the inelastic
neutron spectra of various candidate materials has been measured.
The resulting neutron flux as function of wavelength could be determined
on the target moderator mock-up JESSICA (see detailed report).
Development
of Instrumentation and Methods for Neutron and X-Ray Scattering
The
new high resolution small angle scattering camera KWS-3 with focussing
mirror could be successfully commissioned. With this world-unique
instrument, a momentum space resolution down to 2 x 10-4
Å-1 can be achieved. First successful user experiments
were performed, see detailed report. A new instrument - named LAP-ND
- for spherical neutron polarimetry in transmission was installed
in the neutron guide hall and taken into operation. The primary
spectrometer of a novel instrument for polarisation analysis with
thermal neutrons SV-30 was erected in the reactor hall. The secondary
spectrometer was completed, so that the instrument can take-up operation
in 2003. By means of filter cells with nuclear spin polarised 3He
gas in combination with a position sensitive image plate detector,
neutron polarisation analysis up to incident energies larger than
100 meV will become possible over a wide angular range. A significant
progress has been made in the development of the image plate detector
with low g -sensitivity (in cooperation with University of
Darmstadt) and also in the production of nuclear spin polarised
3He, where we pursue the two alternative routes: spin
exchange optical pumping and direct optical pumping of metastable
3He. Finally a new method has been developed for vectorial
(3D, spherical) polarisation analysis, which does not require the
use of zero-field chambers, such as the complicated CRYOPAD device.
The method is applicable for time-of-flight machines over a wide
angular- and energy transfer range.
A
major event for the institute in 2002 was the "International Workshop
on Polarised Neutrons in Condensed Matter Investigations" PNCMI
2002, which was held at FZJ from 15 to 19 September. 126 scientists
from 17 countries came to the Forschungszentrum to present 114 papers.
The proceedings will be published as a special issue of Physica
B: Condensed Matter. The PNCMI series of workshops bring together
scientist concerned with the methodology of polarised neutrons,
the development of the corresponding technology and the applications
in condensed matter science. In view of the current spallation source
projects, a special microsymposium was devoted to polarised neutron
methods and instrumentation on existing and future pulsed sources.
In connection with the workshop, we had organised the "First School
on Polarised Neutron Scattering" from 10 to 14 September. In contrast
to the two week long neutron laboratory course for students held
at FZJ every year, this school was geared to neutron scientists
wishing to obtain specialised training in the use of polarised neutrons.
Lectures by some of the most experienced scientists who are at the
forefront of the developments in the field were followed by hands-on
experience on four polarised beam instruments at the FRJ-2 reactor
as well as in the 3He laboratory and with instrument
simulation software. The lecture notes were published in the series
Matter and Materials of Forschungszentrum Jülich.
I
would like to close this report by thanking all members of the institute
for their dedicated work during the past year.
Thomas
Brückel
Personnel
2002/2003 and areas of activity
 |
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Scientists
|
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Prof.
Dr. Th. Brückel
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Institute
director; neutron and synchrotron x-ray scattering; magnetism.
|
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Dr.
L. J. Chang
- since 28.01.2002 -
|
Hyperpolarised
3He for neutron polarisation analysis by the spin-exchange
method.
|
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Dr.
J. Chen
|
Mechanical
tests and TEM on irradiated spallation materials. Fatigue
behaviour of ESS structural materials.
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Dr.
H. Conrad
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European
Spallation Source project ESS: target and moderators.
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Dr.
G. Goerigk
- HASYLAB, Hamburg -
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Material
research with anomalous small angle x-ray scattering (ASAXS);
instrument responsible for Jülich's user-dedicated small-angle
scattering facility JUSIFA.
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Dr.
H.-G. Haubold
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Anomalous
small angle x-ray scattering ASAXS and x-ray absorption spectroscopy
XAS from highly dispersive systems; in-situ studies of electro-chemical
processes.
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Dr.
A. Ioffe
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Development
of neutron scattering methods and instrumentation for polarisation
analysis. Instrument responsible for the triple axis spectrometer
SV-30 and the depolarisation instrument LAP-ND.
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Dr.
P. Jung
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Radiation
damage and hydrogen effects in metals and ceramics, thermal
desorption spectroscopy. Development of ESS target module.
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Dr.
E. Kentzinger
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Neutron
and synchrotron x-ray scattering from magnetic thin film materials.
Instrument responsible for the high resolution small angle
camera and reflectometer KWS-3.
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Dr.
U. Köbler
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Magnetisation
and neutron diffraction studies of materials with fourth-order
exchange interactions.
|
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Dr.
R. Mueller
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Development
of the 3He filter for neutron polarisation analysis
by the metastable exchange method.
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J.
Perßon
-
since 01.12.2002 -
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Sample
preparation and characterisation, crystal growth.
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Dr.
U. Rücker
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Instrument
responsible for the neutron reflectometer HADAS; preparation
and characterisation of magnetic thin film systems.
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Dr.
W. Schweika
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Diffuse
neutron scattering for the investigation of short-range order
in alloys, oxides, perovskites and quasi-crystals; instrument
responsible for the diffuse neutron scattering instrument
DNS.
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Dr.
O. Seeck
-
HASYLAB, Hamburg -
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X-ray
scattering from ultrathin liquid films in confined geometries;
instrument responsible of the Wiggler beamline W1 at HASYLAB.
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Dr.
Y. Su
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X-ray
and neutron scattering from strongly correlated systems.
|
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Dr.
Th. Vad
|
Further
development of the instrument control and data treatment programs
for Jülich's user-dedicated small-angle scattering facility
(JUSIFA); ASAXS measurements.
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Technicans
and Engeneers
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Dipl.-Ing.
K. Bussmann
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Electronic
engineer; responsible for spectrometer control hard- and software.
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A.
Christ
-
19.01.2002 until 31.07.2002 -
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Laboratory
assistant.
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L.
Dohmen
|
Project
engineer for the small angle scattering instrument KWS III.
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M.
Abdel Fattah
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Single
crystal growth.
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P.
Foucart
|
Sample
preparation, single crystal growth.
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Dipl.-Ing.
D. Hamann-
HASYLAB, Hamburg-
|
Project
engineer JUSIFA beamline.
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Dipl.-Ing.
P. Hiller
|
Project
engineer for µCAT-collaboration at the Advanced Photon Source
APS; Responsible for x-ray scattering laboratory.
|
|
Ms.
C. Horriar-Esser
|
Ultra
low-temperature magnetometry and 3He filter project.
|
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H.
Jungbluth
|
Software
development for x-ray small angle scattering.
|
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H.
Klein
|
Instrumentation
and data processing, TEM, irradiation experiments.
|
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Ms.
B. Köppchen
|
Secretary.
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Dipl.-Ing.
E. Küssel
|
Project
engineer for the new polarised thermal neutron scattering
instrument SV-30.
|
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B.
Olefs
|
Magnetometry,
electronics and PC responsible.
|
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B.
Schmitz
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Triple
axis spectrometer SV-30 and cryotechniques.
|
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W.
Schmitz
-
until 31.04.2002 -
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SEM,
irradiation experiments, specimen preparation.
|
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T.
Sorkalla
-
until 28.08.2002 -
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Laboratory
assistant.
|
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J.
Thelen
|
Small
angle scattering KWS-3 and molecular beam epitaxy MBE.
|
|
M.
Wündrich
- 03.06.2002 until 30.09.2002 -
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Diffuse
neutron scattering instrument DNS; Reflectometer HADAS.
|
|
|
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Tesis Students
|
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Dipl.-Phys.
W. Babik
-
until 31.03.2002 -
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(RWTH
Aachen) Interface morphology of GMR and TMR layer structures.
|
|
M.
Sc. K. Istomin
- until 30.09.2002 -
|
(RWTH
Aachen) Interplay of charge, orbital and magnetic ordering
in manganites.
|
|
Ms.
M. Sc. M. Mihaylova
-
HASYLAB, Hamburg -
|
(RWTH
Aachen) Liquids in confined geometry investigated by scattering
methods.
|
|
Dipl.-Ing.
M. Schlapp
-
TU Darmstadt -
|
(TU
Darmstadt) Development of highly efficient materials and image
plates for neutron detection.
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Dipl.-Phys.
J. Voigt
|
(RWTH
Aachen) Influence of proximity and reduced dimensionality
on structure and phase transition in rare earth superlattices.
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Ms.
cand. phys. N. Ziegenhagen
-
until 31.07.2002 -
|
(RWTH
Aachen) Laterally structural multilayers.
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|
|
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Guests
|
|
Ms.
Dr. J. Bos
|
(RWTH
Aachen) Preparation of powder and single crystal samples;
magnetic structures and phase transitions by neutron- and
x-ray scattering.
|
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D.
Finarelli
- since 02.09.2002 -
|
(Dip.
Fisica Politecnico di Milano, Italy) ESS-project: target materials.
|
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Dr.
S. Massalovitch
-
until 14.09.2002 -
|
(Kurchatov
Institute, Moscow, Russia) Development of a large-area image
plate detector for thermal neutrons.
|
|
Prof.
V. Plakhty
-
01.02.2002 until 14.06.2002 -
|
(Petersburg
Nuclear Physics Institute, Russia) Neutron scattering on chiral
magnetic systems.
|
|
Dr.
S. Romanzetti
- until 31.08.2002 -
|
(Universita
degli Studi di Ancona, Italy) ESS-project: target materials.
|
|
Dr.
B. Toperverg
|
(Petersburg
Nuclear Physics Institute, Russia) Theory for grazing incidence
diffraction.
|
|
Z.
Yao
-
until 30.11.2002 -
|
(China
Institute of Atomic Energy (CIAE), Beijing, China) ESS-project:
target materials.
|
|
|
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Traniees
|
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Ms.
S. Bluhm
-
until 04.10.2002 -
|
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Ms.
I. Schulte
- until 31.01.2002, since 18.09.2002 -
|
Publications
in journals
Angermund,K.*;
Bühl,M.*; Dinjus,E.*; Endruschat,U.*; Gassner,F.*; Haubold,H.-G.;
Hormes,J.*; Köhl,G.*; Mauschick,F. T.*; Modrow,H.*; Mörtel,R.*;
Mynott,R.*; Tesche,B.*; Vad,Th.; Waldöfner,N.*; Bönnemann,H.*
Nanoscopic Pt colloids in the 'embryonic state'
Angewandte Chemie-international edition, 41 (2002), 21, S. 4041
- 4044
Angermund,K.*;
Bühl,M.*; Dinjus,E.*; Endruschat,U.*; Gassner,F.*; Haubold,H.-G.;
Hormes,J.*; Köhl,G.*; Mauschick,F. T.*; Modrow,H.*; Mörtel,R.*;
Mynott,R.*; Tesche,B.*; Vad,Th.; Waldöfner,N.*; Bönnemann,H.*
Nanoskopische Pt-Kolloide im "embryonalen Stadium"
Angewandte Chemie, 114 (2002), 21, S. 4213 - 4216
Bota,A.*;
Goerigk,G.; Drucker,T.*; Haubold,H.-G.; Petro,J.*
Anomalous small-angle X-ray scattering on a new, nonpyrophoric
raney-type Ni catalyst
Journal of catalysis, 205 (2002), S. 354 - 357
Bönnemann,H.*;
Waldöfner,N.*; Haubold,H.-G.; Vad,Th.
Preparation and characterization of three-dimensional Pt nanoparticle
networks
Chemistry of materials, 14 (2002), S. 1115 - 1120
Chen,J.;
Romanzetti,S.*; Sommer,W. F.*; Ullmaier,H.
Helium bubble formation in 800 MeV proton-irradiated 304L stainless
steel and alloy 718 during post-irradiation annealing
Journal of nuclear materials, 304 (2002), S. 1 - 7
Doan,T.
D.*; Ott,F.*; Menelle,A.*; Humbert,P.*; Fermon,C.*; Prejbeanu,I.
L.*; Rücker,U.
New evanescent neutron wave diffractometer at LLB
Applied physics A, 74 (2002), Suppl., S. S186 - S188
Guilleaume,B.*;
Blaul,J.*; Ballauff,M.*; Wittemann,M.*; Rehahn,M.*; Goerigk,G.
The distribution of counterions around synthetic rod-like polyelectrolytes
in solution
European physical journal E, 8 (2002), S. 299 - 309
Henry,J.*;
Jung,P.; Chen,J.; Brachet,J.-C.*
Tensile properties and microstructure of 9Cr-1Mo martensitic
steels containing a high helium concentration
Journal de physique IV, 12 (2002), Pr8, S. 103
Herms,M.*;
Irmer,G.*; Goerigk,G.; Bedel,E.*; Claverie,A.*
Precipitation in low temperature grown GaAs
Materials science and engineering B, 91/92 (2002), S. 466 - 469
Hupfeld,D.;
Schweika,W.; Strempfer,J.*; Caliebe,W.; Köbler,U.; Mattenberger,K.*;
McIntyre,G. J.*; Yakhou,F.*; Brückel,Th.
Element-specific magnetic long- and short-range order and competing
interactions in GdxEu1-xS
European physical journal B, 26 (2002), S. 273 - 289
Hupfeld,D.;
Seeck,O. H.; Voigt,J.; Bos,J.; Fischer,K.; Brückel,Th.
X-ray resonance exchange scattering from ferromagnets : a new
approach and its application to EuS
Europhysics letters, 59 (2002), 2, S. 284 - 290
Jung,P.
Irradiation effects and consequences on in-service properties
under proton and neutron mixed spectra : an overview
Journal de physique IV, 12 (2002), Pr8, S. 59
Jung,P.
Radiation effects in structural materials of spallation targets
Journal of nuclear materials, 301 (2002), S. 15
Kolb,R.*;
Schlapp,M.; Hesse,S.*; Schmechel,R.*; von Seggern,H.*; Fasel,C.*;
Riedel,R.*; Ehrenberg,H.*; Fueß,H.*
The quasi-binary phase diagram BaF2-BaBr2 and its relation to
the x-ray storage phosphor BaFBr:Eu2
Journal of physics D - applied physics, 35 (2002), S. 1914 - 1918
Köbler,U.
Temperature dependence of the spontaneous magnetisation of body-centred-cubic
bulk iron, amorphous iron and thin iron films
Journal of physics: condensed matter, 14 (2002), S. 8861 - 8880
Köbler,U.;
Hoser,A.; Fischer,K.; Beyss,M.
The impact of fourth-order exchange interactions on the thermal
variation of the order parameter
Applied physics A, 74 (2002), Suppl. S. S604 - S606
Lauter,H.
J.*; Lauter-Pasyuk,V.*; Toperverg,B.; Romashev,L.*; Ustinov,V.*;
Kravtsov,E.*; Vorobiev,A.; Nikonov,O.*; Major,J.*
Spin-resolved unpolarised neutron off-specular scattering for
magnetic multilayer studies
Applied physics A, 74 (2002), Suppl., S. S1557 - S1559
Lauter-Pasyuk,V.*;
Lauter,H. J.*; Toperverg,B.; Petrenko,A.*; Schubert,D.*; Schreiber,J.*;
Burcin,M.*; Aksenov,V.*
Interface and surface formation in self-assembled polymer multilayers
by off-specular neutron scattering
Applied physics A, 74 (2002), Suppl., S. S528 - S530
Lauter-Pasyuk,V.*;
Lauter,H. J.*; Toperverg,B.; Romashev,L.*; Ustinov,V.*
Transverse and lateral structure of the spin-flop phase in Fe/Cr
antiferromagnetic superlattices
Physical review letters, 89 (2002), 16, S. 167203-1 - 167203-4
Mackowski,S.*;
Sobczak,E.*; Nietubyc,R.*; Goerigk,G.; Kret,S.*; Deuzewski,P.*;
Szczepanska,A.*; Janik,E.*; Kossut,J.*; Karczewski,G.*
Three-dimensional quantum dot "crystal" formation in CdTe/ZnTe
superlattices
Physica status solidi B, 229 (2002), S. 445 - 448
Massalovitch,S.;
Ioffe,A.; Küssel,E.; Schlapp,M.; von Seggern,H.*; Brückel,Th.
Development of neutron image plate for low-flux measurements
Applied physics A, 74 (2002), Suppl., S. S118 - S120
Olligs,D.;
Bürgler,D. E.; Wang,Y. G.; Kentzinger,E.; Rücker,U.; Schreiber,R.;
Brückel,Th.; Grünberg,P.
Roughness-induced enhancement of giant magnetoresistance in epitaxial
Fe/Cr/Fe(001) trilayers
Europhysics letters, 59 (2002), 3, S. 458 - 464
Polizzi,S.*;
Riello,P.*; Goerigk,G.; Benedetti,A.*
Quantitative investigations of supported metal catalysts by ASAXS
Journal of synchrotron radiation, 9 (2002), S. 65 - 70
Rücker,U.;
Kentzinger,E.; Toperverg,B.; Ott,F.*; Brückel,Th.
Layer-by-layer magnetometry of polarising supermirrors
Applied physics A, 74 (2002), Suppl., S. S607 - S609
Schlapp,M.;
von Seggern,H.*; Massalovitch,S.; Ioffe,A.; Conrad,H.; Brückel,Th.
Materials for neutron-image plates with low gamma-sensitivity
Applied physics A, 74 (2002), Suppl., S. S109 - S111
Schweika,W.;
Maleyev,S.; Brückel,Th.; Plakhty,V. P.; Regnault,L. P.*
Longitudinal spin fluctuations in the antiferromagnet MnF2 studied
by polarized neutron scattering
Europhysics letters, 60 (2002), 3, S. 446 - 452
Seeck,O.;
Kim,H.*; Lee,D. R.*; Shu,D.*; Kaendler,I. D.*; Basu,J.*; Sinha,S.
K.*
Observation of thickness quantization in liquid films confined
to molecular dimensions
Europhysics letters, 60 (2002), S. 376 - 382
Seydel,T.*;
Tolan,M.*; Ocko,B. M.*; Seeck,O.; Weber,R.*; di Masi,E.*; Press,W.*
Freezing of capillary waves at the glass transition
Physical review B, 65 (2002), S. 184207 - 184213
Toperverg,B.
Off-specular polarised neutron scattering from magnetic fluctuations
in thin films and multilayers
Applied physics A, 74 (2002), Suppl., S. S1560 - S1562
Vad,Th.;
Haubold,H.-G.; Waldöfner,N.*; Bönnemann,H.*
Three-dimensional Pt-nanoparticle networks studied by anomalous
small-angle X-ray scattering and X-ray absorption spectroscopy
Journal of applied crystallography, 35 (2002), S. 459 - 470
Voigt,J.;
Kentzinger,E.; Rücker,U.; Schmidt,W.; Ohl,M.; Hupfeld,D.; Brückel,Th.
Interlayer coupling in [Er/Tb] superlattices
Applied physics A, 74 (2002), Suppl., S. S1517 - S1519
Voigt,J.;
Rücker,U.; Nerger,S.; Kentzinger,E.; Hupfeld,D.; Schmidt,W.;
Brückel,Th.
Structural and magnetic properties of [Er/Tb] superlattices
Journal of magnetism and magnetic materials, 240 (2002), S. 559
- 561
Vorobiev,A.*;
Gordeev,G.*; Major,J.*; Toperverg,B.; Dosch,H.*
The structure of ferrofluids in the vicinity of an interface
with silicon
Applied physics A, 74 (2002), Suppl., S. S817 - S819
Book chapter
Alefeld,B.;
Conrad,H.; Dohmen,L.; Ioffe,A.; Kentzinger,E.; Küssel,E.; Prager,M.;
Rücker,U.; Vehres,G.
Instrument modernisation program at the FRJ-2 reactor
European Conference Abstract Book : 16.-17.05.2002. - Bonn, 2002.
- S. 43
Brückel,Th.
Magnetic X-ray and polarised neutron scattering
Polarized neutron scattering : lectures of the 1st summer school
held at the Forschungszentrum Jülich from 10 to 14 September
2002 / eds.: T. Brückel and W. Schweika. - Jülich, 2002.
- 3-89336-314-9. - S. 323 - 357
Brückel,Th.
Scattering
Soft matter : complex materials on mesoscopic scale ; lecture manuscripts
of the 33rd IFF winter school, organized on March, 4 - 15, 2002
in the Forschungszentrum Jülich at the Institut für Festkörperforschung
/ ed. J. K. Dhont ... - Jülich, 2002. - ( Schriften des Forschungszentrum
Jülich, Reihe Materie und Material ; 10). - 3-89336-297-5.
- S. A1.1 - A1.35
Chen,J.;
Conrad,H.; Jung,P.; Soltner,H.; Wolters,J.; Ullmaier,H.
Materialprobleme am Target-Moderator-Komplex der ESS
European conference abstract book : Bonn, 16. - 17.05.2002. - S.
27
Conrad,H.;
Küssel,E.; Bayer,N.; Glückler,H.; Soltner,H.; Stelzer,H.
Entwicklung fortschrittlicher kalter Moderatoren für die
ESS
European conference abstract book : Bonn, 16. - 17.05.2002. - S.
27
Dohmen,L.;
Alefeld,B.; Kentzinger,E.; Rücker,U.; Stellbrink,J.; Springer,T.;
Richter,D.; Brückel,Th.
KWS3 : a focusing small angle neutron scattering instrument and
neutron refectometer at Jülich
European conference abstract book : Bonn, 16. - 17.05.2002. - S.
33
Fermon,C.*;
Suck,J. B.*; Toperverg,B.; Vettier,C.*; Zabel,H.*
Microsystems and information technologies
New science and technology for the 21st century : the ESS project
vol. 2. - 2002. - S. 6 - 7
Ioffe,A.
Wide angle high resolution spectroscopy at pulsed neutron sources
PNCMI-Workshop, Jülich, 16.-19.09.2002 : abstract book. - 2002.
- S. M11
Kampmann,R.*;
Haese-Seiller,M.*; Kudryashov,V.*; Deriglazov,V.*; Toperverg,B.;
Schreyer,A.*; Sackmann,E.*
Perspectives for polarised reflectometry at the novel reflectometer
REFSANS at FRM-II in Munich/Germany
PNCMI-Workshop, Jülich, 16.-19.09.2002 : abstract book. - 2002.
- S. B29
Kentzinger,E.;
Rücker,U.; Toperverg,B.; Brückel,Th.
Determination of the magnetic fluctuations in a Fe/Cr/Fe trilayer
exhibiting a neutron resonance state
PNCMI-Workshop, Jülich, 16.-19.09.2002 : abstract book. - 2002.
- S. A24
Kentzinger,E.;
Toperverg,B.; Rücker,U.; Brückel,Th.
Simulation of reflectivity and off-specular scattering of polarised
neutrons from laterally patterned magnetic multilayers
PNCMI-Workshop, Jülich, 16.-19.09.2002 : abstract book. - 2002.
- S. A23
Klimko,S.*;
Böni,P.*; Currat,R.*; Demmel,F.*; Fåk,B.*; Gähler,R.*;
Mezei,F.*; Stadler,C.*; Toperverg,B.
Implementation of a zero field spin-echo option at the three-axis
spectrometer IN3 (ILL, Grenoble) and first measurements of phonon
linewidths
PNCMI-Workshop, Jülich, 16.-19.09.2002 : abstract book. - 2002.
- S. V33
Köbler,U.;
Hoser,A.*; Bos,J.; Schäfer,W.*; Mueller,R.; Fischer,K.
On the thermodynamic universality classes of Heisenberg type
magnets
European conference abstract book : Bonn, 16. - 17.05.2002. - S.
26
Lauter,H.
J.*; Lauter-Pasyuk,V.*; Toperverg,B.; Romashev,L.*; Ustinov,V.*;
Vorobiev,A.*; Major,J.*
Neutron spin selection in off-specular scattering from magnetic
multilayers
European conference abstract book : Bonn, 16. - 17.05.2002. - S.
53
Lauter,H.
J.*; Lauter-Pasyuk,V.*; Toperverg,B.; Rücker,U.; Romashev,L.*;
Milyaev,M.; Ustinov,V.*
Spin-flop transition in Fe/Cr multilayers
PNCMI-Workshop, Jülich, 16.-19.09.2002 : abstract book. - 2002.
- S. V25
Lauter,H.*;
Lauter-Pasyuk,V.*; Toperverg,B.; Romashev,L.*; Milyaev,M.*; Ustinov,V.*
Twisted ground state in antiferromagnetically coupled multilayers
Proceedings of the 7th International Conference on Surface X-ray
and Neutron Scattering : Lake Tahoe, USA, 23. - 27.09.2002. - (2002).
- S. 17
Lauter-Pasyuk,V.*;
Lauter,H. J.*; Gordeev,G.*; Müller-Buschbaum,P.*; Toperverg,B.;
Petry,W.*
Magnetic nanoparticles in self-assembled diblock-copolymer films
PNCMI-Workshop, Jülich, 16.-19.09.2002 : abstract book. - 2002.
- S. A22
Lauter-Pasyuk,V.*;
Lauter,H. J.*; Toperverg,B.; Müller-Buschbaum,P.*; Petrenko,A.*;
Petry,W.*; Aksenov,V.*
Self-assembly of magnetite nanoparticles in thin block-copolymer
films by off-specular neutron scattering
European conference abstract book : Bonn, 16. - 17.05.2002. - S.
53
Lauter-Pasyuk,V.*;
Lauter,H. J.*; Toperverg,B.; Romashev,L.*; Milyaev,M.; Ustinov,V.*
The origin of the twisted ground state in magnetic multilayers
in external magnetic field
PNCMI-Workshop, Jülich, 16.-19.09.2002 : abstract book. - 2002.
- S. V22
Lauter-Pasyuk,V.*;
Lauter,H.*; Gordeev,G.*; Müller-Buschbaum,P.*; Toperverg,B.;
Petry,W.*
Self-assembled nanomaterials : magnetic nanoparticles in copolymer
films studied by off-specular neutron scattering
Proceedings of the 7th International Conference on Surface X-ray
and Neutron Scattering : Lake Tahoe, USA, 23. - 27.09.2002. - (2002).
- S. 52
Lee,W.-T.*;
te Velthuis,S. G. E.*; Felcher,G. P.*; Klose,F.*; Gredig,T.*; Dahlberg,D.*;
Toperverg,B.
Measuring lateral magnetic structure in thin films using polarised
neutron reflectometry
PNCMI-Workshop, Jülich, 16.-19.09.2002 : abstract book. - 2002.
- S. A21
Massalovitch,S.;
Ioffe,A.; Küssel,E.; Schlapp,M.; Brückel,Th.
Development of image plate based neutron detector
International Workshop on Position-Sensitive Neutron Detectors :
Status and Perspectives. - 2002 (2). - S. 569 - 571
Massalovitch,S.;
Ioffe,A.; Schlapp,M.; Von Seggern,H.*; Küssel,E.; Brückel,Th.
Low gamma-sensitivity neutron image plate detector
European conference abstract book : Bonn, 16. - 17.05.2002. - S.
89
Mueller,R.;
Chang,L. J.; Appelt,S.
Polarized 3He in Jülich
European conference abstract book : Bonn, 16. - 17.05.2002. - S.
96
Mueller,R.;
Chang,L. J.; Appelt,S.; Haesing,W.; Horriar-Esser,Ch.; Ioffe,A.;
Brückel,Th.
Progress in the production of polarised 3He in Jülich
PNCMI-Workshop, Jülich, 16.-19.09.2002 : abstract book. - 2002.
- S. B30
Plakhty,V.
P.; Maleyev,S.*; Gavrilov,S. V.*; Bourdarot,F.*; Pouget,S.*; Barilo,S.
N.*
Quantum phase transition in Pr2CuO4 to collinear state induced
by magnetic field : a neutron diffraction study
European conference abstract book : Bonn, 16. - 17.05.2002. - S.
56
Rücker,U.;
Toperverg,B.; Kentzinger,E.; Brückel,Th.
Resonant states in a ferromagnetic quantum well for neutrons
European conference abstract book : Bonn, 16. - 17.05.2002. - S.
43
Schweika,W.
Introduction to polarised neutron scattering
Polarized neutron scattering : lectures of the 1st summer school
held at the Forschungszentrum Jülich from 10 to 14 September
2002 /eds.: T. Brückel and W. Schweika. - Jülich, 2002.
- 3-89336-314-9. - S. 5 - 29
Schweika,W.
Time-of-flight and polarisation analysis for diffuse neutron
scattering
PNCMI-Workshop, Jülich, 16.-19.09.2002 : abstract book. - 2002.
- S. M9
Schweika,W.;
Maleyev,S. V.; Brückel,Th.; Plakhty,V. P.; Regnault,L.-P.*
Longitudinal spin fluctuations in 3d antiferromagnets
PNCMI-Workshop, Jülich, 16.-19.09.2002 : abstract book. - 2002.
- S. V9
Schweika,W.;
Maleyev,S.*; Brückel,Th.; Plakhty,V.*; Regnault,L.-P.*
Longitudinal spin fluctuations in the antiferromagnet MnF2 studied
by polarized neutron scattering
European conference abstract book : Bonn, 16. - 17.05.2002. - S.
36
Seeck,O.
Capillary waves on polymer thin films
Soft matter : complex materials on mesoscopic scale ; lecture manuscripts
of the 33rd IFF winter school, organized on March, 4 - 15, 2002
in the Forschungszentrum Jülich at the Institut für Festkörperforschung
/ ed. J. K. Dhont ... - Jülich, 2002. - ( Schriften des Forschungszentrum
Jülich, Reihe Materie und Material ; 10). - 3-89336-297-5.
- S. B7.1 - B7.15
Su,Y.;
Istomin,K.; Schweika,W.; Fattah,A.; Foucart,P.; Meuffels,P.; Brückel,Th.;
Kaiser,V.*
Polarization analysis of diffuse neutron scattering in lightly
doped La1-xSrxMn03 single crystals
European conference abstract book : Bonn, 16. - 17.05.2002. - S.
26
Su,Y.;
Istomin,K.; Schweika,W.; Fattah,A.; Foucart,P.; Meuffels,P.; Brückel,Th.;
Kaiser,V.*
Polarization analysis of diffuse neutron scattering in lightly
doped La1-xSrxMnO3 single crystals
PNCMI-Workshop, Jülich, 16.-19.09.2002 : abstract book. - 2002.
- S. A13
Tasset,F.*;
Regnault,L.-P.*; Brückel,Th.; Rupp,A.*; Eccleston,R.*; Török,G.*;
Fermon,C.*; Heil,W.*
ENPI : the European neutron polarisation initiative
European conference abstract book : Bonn, 16. - 17.05.2002. - S.
95
te
Velthuis,S. G. E.*; Felcher,G. P.*; Toperverg,B.; Vorobiev,A.*;
Major,J.*
Domain states in exchange biased Co/CoO bilayers
PNCMI-Workshop, Jülich, 16.-19.09.2002 : abstract book. - 2002.
- S. V19
Toperverg,B.
Larmor phase labelling in reflectometry, SANS and tomography
PNCMI-Workshop, Jülich, 16.-19.09.2002 : abstract book. - 2002.
- S. V31
Toperverg,B.
Polarised neutron reflection and off-specular scattering
Polarized neutron scattering : lectures of the 1st summer school
held at the Forschungszentrum Jülich from 10 to 14 September
2002 / T. Brückel (ed.) .. - Jülich, 2002. - 3-89336-314-9.
- S. 247 - 288
Toperverg,B.
Supermatrix formalism to model off-specular neutron scattering
Proceedings of the 7th International Conference on Surface X-ray
and Neutron Scattering : Lake Tahoe, USA, 23. - 27.09.2002. - (2002).
- S. 51
Voigt,J.;
Kentzinger,E.; Rücker,U.; Schmidt,W.*; Schweika,W.; Brückel,Th.
Magnetic structures of phase transitions in [Er-Tb] multilayers
European conference abstract book : Bonn, 16. - 17.05.2002. - S.
24
Vorobiev,A.*;
Gordeev,G.*; Major,J.*; Toperverg,B.; Dosch,H.*
Transverse and lateral self-organisation in colloids of ferromagnetic
nanoparticles
PNCMI-Workshop, Jülich, 16.-19.09.2002 : abstract book. - 2002.
- S. V26
Vrana,M.*;
Mikula,P.*; Lukas,P.*; Ioffe,A.; Nistler,W.*
Neutron interferometric measurements in NPI Rez
European conference abstract book : Bonn, 16. - 17.05.2002. - S.
11
Ziegenhagen,N.;
Rücker,U.; Kentzinger,E.; Lehmann,R.; van der Hart,A.; Toperverg,B.;
Brückel,Th.
Determination of the magnetic properties of laterally structured
Fe/Cr multilayers
PNCMI-Workshop, Jülich, 16.-19.09.2002 : abstract book. - 2002.
- S. V18
Ziegenhagen,N.;
Rücker,U.; Kentzinger,E.; Lehmann,R.; van der Hart,A.; Toperverg,B.;
Brückel,Th.
Magnetic properties of laterally structured Fe/Cr multilayers
European conference abstract book : Bonn, 16. - 17.05.2002. - S.
25
Zotov,N.*;
Schäfer,W.; Jansen,E.; Kockelmann,W.*; Delaplane,R. G.*
Neutron diffraction studies of glasses in the collaborative research
project SFB 408 Bonn, Germany
European conference abstract book : Bonn, 16. - 17.05.2002. - S.
23
Book
Brückel,Th.
(Hrsg.); Schweika,W. (Hrsg.)
Polarized neutron scattering : lectures of the 1st summer school
held at the Forschungszentrum Jülich from 10 to 14 September
2002
Jülich, Forschungszentrum, Zentralbibliothek, 2002
Schriften des Forschungszentrums Jülich, Reihe Materie und
Material ; 12
3-89336-314-9
Invited talks
Bayer,N.;
Conrad,H.; Glückler,H.; Küssel,E.; Soltner,H.; Stelzer,H.
Entwicklung fortschrittlicher kalter Moderatoren für die
ESS
ESS-European Conference : Bonn, Alter Bundestag
Bonn: 16.05.2002 - 17.05.2002
Brückel,Th.
Introduction to polarised neutron scattering
First Summer School on Polarised Neutron Scattering : FZJ, IFF
Jülich: 11.09.2002 - 14.09.2002
Brückel,Th.
Magnetic X-ray and polarised neutron scattering
First Summer School on Polarised Neutron Scattering : FZJ, IFF
Jülich: 11.09.2002 - 14.09.2002
Brückel,Th.
Magnetic X-ray scattering : status and perspectives
ERLSYN-Science2002 : International Workshop on Scientific Applications
of Energy Recovery Linac Driven Synchrotron Light Sources ; Universität
Erlangen
Erlangen: 27.09.2002 - 29.09.2002
Brückel,Th.
Magnetic X-ray scattering : status and perspectives
PETRA III Upgrade Workshop on Condensed Matter Applications : DESY
Hamburg
Hamburg: 30.09.2002 - 02.10.2002
Brückel,Th.
Scattering
Soft matter : complex materials on mesoscopic scale ; lecture manuscripts
of the 33rd IFF winter school
Jülich: 05.03.2002
Brückel,Th.
The colorful palette of magnetism : resonant magnetic X-ray scattering
Max-Planck-Institut : Stuttgart
Stuttgart: 16.07.2002
Brückel,Th.
Von korrelierten Elektronen zu komplexen Legierungen : Festkörperforschung
am IFF
HGF-Workshop Kondensierte Materie : Forschungszentrum Jülich
Jülich: 06.11.2002
Chen,J.
HCF experiments for ESS
4th International Workshop on Mercury Target Development : Forschungszentrum
Jülich
Jülich: 12.07.2002 - 16.07.2002
Chen,J.
Summary and conclusion from PIE of spent targets at FZ-Juelich
5th International Workshop on Spallation Materials Technology
Charleston, S.C.: 19.05.2002 - 24.05.2002
Conrad,H.
Konzepte zur Auslegung der Neutronentargets an Spallationsquellen
ESS-Tage
Bad Honnef: 15.04.2002
Conrad,H.
The new ESS moderator concept
4th International Workshop on Mercury Target Development : Forschungszentrum
Jülich
Jülich: 15.07.2002
Goerigk,G.
Materialwissenschaftliche Untersuchungen mit anomaler Röntgen-
Kleinwinkelstreuung
Vortrags- und Diskussionstreffen "Materialwissenschaften in Hamburg
2002" : Universität Hamburg, Chemie
Hamburg: 14.10.2002 - 15.10.2002
Goerigk,G.;
Haubold,H.-G.; Lyon,O.*; Simon,J.-P.*
Review of anomalous ASAXS in materials science
SAS 2002 - Konferenz
Venedig, Italien: 25.08.2002 - 30.08.2002
Goerigk,G.;
Williamson,D. L.*
Quantitative ASAXS of germanium inhomogeneities in amorphous
silicon-germanium alloys
SAS 2002 - Konferenz
Venedig, Italy: 25.08.2002 - 30.08.2002
Hanslik,R.;
Butzek,M.; Müller,A.
New design for ESS rotation shutter
4th International Workshop on Mercury Target Development : Forschungszentrum
Jülich
Jülich: 12.07.2002 - 16.07.2002
Haubold,H.-G.;
Vad,Th.; Waldöfner,N.*
From Pt molecules to catalyst nanoparticles : ASAXS / SAXS in-situ
studies
SAS 2002 - Konferenz
Venedig, Italien: 25.08.2002 - 30.08.2002
Ioffe,A.
Neutron speed echo add-on to TAS : an increase in resolution
without the use of polarized neutrons
Workshop on the Perspectives in Single Crystal Neutron Spectroscopy
(SCNS) : ILL Grenoble
Grenoble, Frankreich: 12.12.2002 - 14.12.2002
Ioffe,A.
Wide angle high resolution spectroscopy at pulsed neutron sources
Workshop on Polarised Neutrons in Condensed Matter Investigations
: Forschungszentrum Jülich
Jülich: 16.09.2002 - 19.09.2002
Jung,P.
Hydrogen in RAFM´s : diffusion and effects on tensile properties
IEA Workshop on Ferritic-Martensitic Steels
Garching: 14.11.2002
Jung,P.
Pitting mitigation strategies at ESS
4th InternationalWorkshop on Mercury Target Development : Forschungszentrum
Jülich
Jülich: 12.07.2002 - 16.07.2002
Jung,P.
Strahlenschäden am ESS-Target
ESS Tage
Bad Honnef: 14.04.2002 - 16.04.2002
Jung,P.
The solid target concept
Technical Advisory Committee of ESS
Saclay, Frankreich: 04.11.2002 - 05.11.2002
Jung,P.;
Henry,J.*; Chen,J.; Brachet,J.-C.*
Effect of implanted helium on tensile properties and hardness
of 9%Cr martensitic stainless steels
5th International Workshop on Spallation Materials Technology
Charleston, USA: 19.05.2002 - 24.05.2002
Jung,P.;
Yao,Z.; Liu,C.*
Migration and trapping of hydrogen in steel - effect of irradiation
and helium-implantation
International Conference on Hydrogen Effects on Material Behaviour
and Corrosion
Jackson Lake, USA: 22.09.2002 - 26.09.2002
Kentzinger,E.
First experiments on the focusing mirror USANS diffractometer
KWS-3
European Users Meeting of the European Access to Research Infrastructure
Project "Juelich Neutrons for Europe" : Kerkrade (Netherlands)
Kerkrade: 22.11.2002
Kentzinger,E.
KWS3, the new focusing mirror SANS instrument at Jülich
6th ESS-SAC Meeting
Bochum: 01.10.2002
Klimko,S.*;
Böni,P.*; Currat,R.*; Demmel,F.*; Fåk,B.*; Gähler,R.*;
Mezei,F.*; Stadler,C.*; Toperverg,B.
Implementation of a zero field spin-echo option at the three-axis
spectrometer IN3 (ILL, Grenoble) and first measurements of phonon
linewidths
Workshop on Polarised Neutrons in Condensed Matter Investigations
: Forschungszentrum Jülich
Jülich: 16.09.2002 - 19.09.2002
Kranold,R.*;
Kriesen,S.*; Haselhoff,M.*; Weber,H.-J.*; Goerigk,G.
SAXS study of the growth kinetics of CuCl nanocrystals in NaCl
SAS 2002 Konferenz
Venedig, Italien: 25.08.2002 - 30.08.2002
Lauter,H.
J.*; Lauter-Pasyuk,V.*; Toperverg,B.; Rücker,U.; Romashev,L.*;
Milyaev,M.; Ustinov,V.*
Spin-flop transition in Fe/Cr multilayers
Workshop on Polarised Neutrons in Condensed Matter Investigations
: Forschungszentrum Jülich
Jülich: 16.09.2002 - 19.09.2002
Lauter,H.*;
Lauter-Pasyuk,V.*; Toperverg,B.; Romashev,L.*; Milyaev,M.*; Ustinov,V.*
Twisted ground state in antiferromagnetically coupled multilayers
The 7th International Conference on Surface X-Ray and Neutron Scattering
Lake Tahoe, CA: 23.09.2002 - 27.09.2002
Lauter-Pasyuk,V.*;
Lauter,H. J.*; Toperverg,B.; Romashev,L.*; Milyaev,M.; Ustinov,V.*
The origin of the twisted ground state in magnetic multilayers
in external magnetic field
Workshop on Polarised Neutrons in Condensed Matter Investigations
: Forschungszentrum Jülich
Jülich: 16.09.2002 - 19.09.2002
Lauter-Pasyuk,V.*;
Lauter,H.*; Gordeev,G.*; Müller-Buschbaum,P.*; Toperverg,B.;
Petry,W.*
Self-assembled nanomaterials : magnetic nanoparticles in copolymer
films studied by off-specular neutron scattering
7th International Conference on Surface X-ray and Neutron Scattering
Lake Tahoe, USA: 23.09.2002 - 27.09.2002
Massalovitch,S.;
Ioffe,A.; Küssel,E.; Brückel,Th.
Neutron image plate detector with low gamma-sensitivity
Seminar : Technische Universität München
Garching: 10.06.2002
Massalovitch,S.;
Ioffe,A.; Schlapp,M.; Von Seggern,H.*; Küssel,E.; Brückel,Th.
Low gamma-sensitivity neutron image plate detector
ESS-Conference and TECHNI-Network Meeting
Bonn: 15.05.2002 - 17.05.2002
Schweika,W.
Time-of-flight and polarisation analysis for diffuse neutron
scattering
Workshop on Polarised Neutrons in Condensed Matter Investigations
: Forschungszentrum Jülich
Jülich: 16.09.2002 - 19.09.2002
Schweika,W.;
Maleyev,S. V.*; Brückel,Th.; Plakhty,V. P.*; Regnault,L.-P.*
Longitudinal spin fluctuations in 3d antiferromagnets
Workshop on Polarised Neutrons in Condensed Matter Investigations
: Forschungszentrum Jülich
Jülich: 16.09.2002 - 19.09.2002
Schweika,W.;
Maleyev,S.*; Brückel,Th.; Plakhty,V. P.; Regnault,L.-P.*
Longitudinal spin fluctuations in the antiferromagnet MnF2 studied
by polarized neutron scattering
Deutsche Neutronenstreutagung
Bonn: 15.05.2002 - 16.05.2002
Seeck,O.
Auto- and cross correlation functions of thin film systems determined
by X-ray diffuse scattering
Röntgenseminar des IFPAN
Warschau: 20.03.2002
Seeck,O.
Capillary waves on polymer thin films
Soft matter : complex materials on mesoscopic scale ; lecture manuscripts
of the 33rd IFF winter school
Jülich: 05.03.2002
Seeck,O.
X-ray experiments on confined liquids
MPI-MF Institutskolloquium
Stuttgart: 03.05.2002
Seeck,O.
X-ray reflectivity on thin film samples
Röntgenseminar des IFPAN
Warschau: 20.03.2002
te
Velthuis,S. G. E.*; Felcher,G. P.*; Toperverg,B.; Vorobiev,A.*;
Major,J.*
Domain states in exchange biased Co/CoO bilayers
Workshop on Polarised Neutrons in Condensed Matter Investigations
: Forschungszentrum Jülich
Jülich: 16.09.2002 - 19.09.2002
Toperverg,B.
Diffuse neutron scattering on multilayers
XXXVI PNPI Winter School Condensed State Physics
St. Petersburg: 15.04.2002 - 20.04.2002
Toperverg,B.
Larmor phase labelling in reflectometry, SANS and tomography
Workshop on Polarised Neutrons in Condensed Matter Investigations
: Forschungszentrum Jülich
Jülich: 16.09.2002 - 19.09.2002
Toperverg,B.
Neutron scattering at grazing incidence
Workshop RNIKS-2002 : PNPI
Gatchina, Russland: 14.10.2002 - 21.10.2002
Toperverg,B.
Polarised neutron reflection and off-specular scattering
First Summer School on Polarised Neutron Scattering : FZJ, IFF
Jülich: 11.09.2002 - 14.09.2002
Toperverg,B.
Supermatrix formalism to model off-specular neutron scattering
The 7th International Conference on Surface X-Ray and Neutron Scattering
Lake Tahoe, CA: 23.09.2002 - 27.09.2002
Toperverg,B.
Theoretical interpretation and quantitative analysis of data
on reflectometry and off-specular scattering
Workshop Neutron Reflection: Progress in the Study of Interfaces
ILL, Grenoble: 24.10.2002 - 26.10.2002
Toperverg,B.
Theoretical interpretation of off-specular polarized neutron
scattering from nanocomposite films
International Workshop on Nanocomposites : Materials, Neutrons and
Data Interpretation : ANL
Argonne: 28.03.2002
Toperverg,B.
Towards 3-dimensional polarimetry in neutron reflectometry
16th PAC for Condensed Matter Physics Meeting
Dubna: 18.04.2002 - 19.04.2002
Vorobiev,A.*;
Gordeev,G.*; Major,J.*; Toperverg,B.; Dosch,H.*
Transverse and lateral self-organisation in colloids of ferromagnetic
nanoparticles
Workshop on Polarised Neutrons in Condensed Matter Investigations
: Forschungszentrum Jülich
Jülich: 16.09.2002 - 19.09.2002
Ziegenhagen,N.;
Rücker,U.; Kentzinger,E.; Lehmann,R.; van der Hart,A.; Toperverg,B.;
Brückel,Th.
Determination of the magnetic properties of laterally structured
Fe/Cr multilayers
Workshop on Polarised Neutrons in Condensed Matter Investigations
: Forschungszentrum Jülich
Jülich: 16.09.2002 - 19.09.2002
Other talks
Brückel,Th.
Das Institut für Streumethoden
Beirats-Informationsveranstaltung : Forschungszentrum Jülich
Jülich: 21.03.2002
Brückel,Th.
Elastic scattering from many-body systems
Laboratory Course Neutron Scattering : FZJ-IFF
Jülich: 16.09.2002 - 20.09.2002
Brückel,Th.
Magnetic X-ray diffraction reveals elementspecific magnetic correlations
APS User Science Seminar
Argonne: 26.07.2002
Brückel,Th.
Magnetism
Laboratory Course Neutron Scattering : FZJ-IFF
Jülich: 16.09.2002 - 20.09.2002
Brückel,Th.
Science review : "FZJ @ MuCAT: examples for research activities"
APS Seminar : Argonne National Laboratory (ANL)
Argonne, USA: 21.11.2002
Conrad,H.
Inelastic neutron scattering from water-ice, tetrahydrofurane-hydrate
and methane-hydrate
6th Meeting of the Collaboration on Advanced Cold Moderators (ACoM)
: Forschungszentrum Jülich
Jülich: 11.09.2002
Conrad,H.
Neutron Sources
Laboratory Course Neutron Scattering : FZJ-IFF
Jülich: 16.09.2002 - 20.09.2002
Goerigk,G.
JUSIFA : Jülichs small angle X-ray scattering experiment
at HASYLAB
Satellite meeting : status and perspectives of SAXS/WAXS HASYLAB
Hamburg: 24.01.2002
Goerigk,G.
Materialuntersuchungen mit anomaler Röntgen-Kleinwinkelstreuung
Institutsseminar : Universität Göttingen. I. Physikalisches
Institut
Göttingen: 28.01.2002
Ioffe,A.
Principles of neutron speed echo spectroscopy
Seminar : Institut Max von Laue, Paul Langevin
Grenoble: 11.03.2002
Köbler,U.
Experimentelle Evidenzen gegen die Gültigkeit der klassischen
Spinwellentheorie
Universitäts-Kolloquium : Bochum
Bochum: 16.07.2002
Nünighoff,K.;
Conrad,H.; Filges,D.; Goldenbaum,F.; Neef,R.-D.; Pohl,C.; Schaal,H.;
Stelzer,H.; Tietze-Jaensch,H.; Paul,N.; Wohlmuther,W.
The JESSICA experiment - part I : inprovements of the JESSICA
experiment
ACoM-6 - 6th Meeting of the Collaboration on Advanced Cold Moderators
: Forschungszentrum Jülich
Jülich: 11.09.2002 - 13.09.2002
Pohl,C.;
Conrad,H.; Filges,D.; Goldenbaum,F.; Neef,R.-D.; Nünighoff,K.;
Schaal,H.; Stelzer,H.; Tietze-Jaensch,H.; Paul,N.; Wohlmuther,W.
The JESSICA experiment - part II : results from the JESSICA experiment
ACoM6 - 6th Meeting of the Collaboration on Advanced Cold Moderators
: Forschungszentrum Jülich
Jülich: 11.09.2002 - 13.09.2002
Rücker,U.
Neutronenstreuinstrumentierung am FRJ-2
ZFR-Fachkundeseminar : Forschungszentrum Jülich
Jülich: 06.11.2002
Rücker,U.
Neutronenstreuinstrumentierung am FRJ-2
ZFR-Fachkundeseminar : Forschungszentrum Jülich
Jülich: 15.11.2002
Schweika,W.
Diffuse neutron scattering : time-of-flight and polarization
analysis
ESS-Tage : Bad-Honnef
Bad-Honnef: 14.04.2002 - 16.04.2002
Schweika,W.
Polarization analysis
Laboratory Course Neutron Scattering : FZJ-IFF
Jülich: 16.09.2002 - 20.09.2002
Seeck,O.
Continuum description : grazing incidence neutron scattering
Laboratory Course Neutron Scattering : FZJ-IFF
Jülich: 16.09.2002 - 20.09.2002
Toperverg,B.
Larmor precession tracing, small angle scattering, depolarization,
and the optical theorem
Workshop Progress in Neutron Larmor Precession Techniques
Delft: 29.05.2002 - 01.06.2002
Toperverg,B.
Lateral magnetic patterns in thin films and layered superstructures
: polarized neutron off-specular scattering
Seminar Ruhr Universität Bochum
Bochum: 21.02.2002
Toperverg,B.
Neutron scattering at grazing incidence
IPNS / SNS Seminar : ANL
Argonne, IL: 30.09.2002
Toperverg,B.
Polarised neutron reflection and off-specular scattering
GKSS-Seminar
Geesthacht: 23.08.2002
Toperverg,B.
Theory of polarized neutron scattering and interpretation of
experimental data on vector analysis
ILL Seminar
Grenoble: 14.02.2002
Voigt,J.;
Kentzinger,E.
Untersuchung magnetischer Übergitter mit Neutronen und Synchrotronröntgenstrahlung
Workshop Magnetismus und Streumethoden : Forschungszentrum Jülich
Jülich: 07.06.2002
Posters
Alefeld,B.;
Conrad,H.; Dohmen,L.; Ioffe,A.; Kentzinger,E.; Küssel,E.; Prager,M.;
Rücker,U.; Vehres,G.
Instrument modernisation program at the FRJ-2 reactor
ESS Conference
Bonn: 16.05.2002 - 17.05.2002
Andreasen,J.
W.*; Rasmussen,O.*; Feidenhans,R.*; Berg Rasmussen,F.*; Christensen,R.*;
Molenbroek,A.*; Goerigk,G.
An in-situ cell for ASAXS investigations of nanocrystalline catalysts
SAS 2002 Konferenz
Venedig, Italien: 25.08.2002 - 30.08.2002
Bos,J.;
Köbler,U.; Küssel,E.
Magnetische Besonderheiten an den hydrothermal synthetisierten
Carbonaten
4. Vortragstagung Fachgruppe Festkörperchemie und Materialforschung
: Technische Universität Dresden
Dresden: 24.09.2002 - 26.09.2002
Chang,L.
J.; Mueller,R. M.; Appelt,S.; Häsing,F. W.
Polarized 3He in Jülich
ESS-Conference
Bonn: 16.05.2002 - 17.05.2002
Chen,J.;
Conrad,H.; Jung,P.; Soltner,H.; Wolters,J.; Ullmaier,H.
Material problem of the target-moderator-complex in ESS
ESS European Conference
Bonn: 16.05.2002 - 17.05.2002
Dohmen,L.;
Alefeld,B.; Kentzinger,E.; Rücker,U.; Stellbrink,J.; Ioffe,A.;
Springer,T.; Richter,D.; Brückel,Th.; Drochner,M.; Engels,R.;
Kleines,H.; Suxdorf,F.; Zwoll,K.
A high resolution small angle neutron scattering instrument and
reflectometer with focusing mirror (KWS3) at Jülich
ESS-Conference
Bonn: 16.05.2002 - 17.05.2002
Dürr,H.
A.*; Krause,B.*; Schreiber,F.*; Dosch,H.*; Seeck,O.
Interfacial morphology and thermal stability of metal contacts
on organic thin films
HASYLAB User Meeting
Hamburg: 25.01.2002
Goerigk,G.
Anomalous small angle X-ray scattering in solid state physics,
catalyst research and chemistry
HGF-Workshop "Kondensierte Materie"
FZJ, Jülich: 06.11.2002 - 06.11.2002
Goerigk,G.;
Williamson,D. L.*
Anomalous small-angle X-ray scattering study of hotwire and plasma
grown amorphous silicon-germanium alloys
HASYLAB User Meeting
Hamburg: 25.01.2002
Grigorian,S.*;
Grenzer,J.*; Pietsch,U.*; Seeck,O.
Thermal diffuse scattering in grazing-incidence-diffraction
HASYLAB User Meeting
Hamburg: 25.01.2002
Haubold,H.-G.;
Vad,Th.; Waldöfner,N.*
From Pt molecules to nanoparticles: ASAXS / SAXS in-situ studies
HGF-Workshop "Kondensierte Materie"
FZJ, Jülich: 06.11.2002 - 06.11.2002
Istomin,K.;
Su,Y.; Fattah,M.; Foucart,P.; Hupfeld,D.; Seeck,O.; Brückel,Th.
Reexamination of the charge/orbital ordering in lightly doped
LaSrMnO by synchrotron X-ray scattering methods
HGF-Workshop "Kondensierte Materie"
FZJ, Jülch: 06.11.2002 - 06.11.2002
Istomin,K.;
Su,Y.; Fattah,M.; Seeck,O.; Hupfeld,D.; Brückel,Th.
Resonant scattering from lightly doped La1-xSrxMnO3 (x - 1/8)
HASYLAB User Meeting
Hamburg: 25.01.2002
Istomin,K.;
Su,Y.; Schweika,W.; Hupfeld,D.; Fattah,M.; Foucart,P.; Brückel,Th.
Complementary X-ray and neutron scattering from lightly doped
La1-xSrxMnO3 (x ~ 1/8) single crystals
Workshop on Neutron and Synchrotron X-ray Scattering in Condensed
Matter Research : PSI Villigen
Villigen: 03.08.2002 - 06.08.2002
Kampmann,R.*;
Haese-Seiller,M.*; Kudryashov,V.*; Deriglazov,V.*; Toperverg,B.;
Schreyer,A.*; Sackmann,E.*
Perspectives for polarised reflectometry at the novel reflectometer
REFSANS at FRM-II in Munich/Germany
Workshop on Polarised Neutrons in Condensed Matter Investigations
: Forschungszentrum Jülich
Jülich: 16.09.2002 - 19.09.2002
Kentzinger,E.
KWS-3, a focusing mirror USANS diffractometer in Jülich
Deutsche Neutronenstreutagung
Bonn: 15.05.2002 - 16.05.2002
Kentzinger,E.;
Rücker,U.; Toperverg,B.; Brückel,Th.
Determination of the magnetic fluctuations in a Fe/Cr/Fe trilayer
exhibiting a neutron resonance state
Workshop on Polarised Neutrons in Condensed Matter Investigations
: Forschungszentrum Jülich
Jülich: 16.09.2002 - 19.09.2002
Kentzinger,E.;
Toperverg,B.; Rücker,U.; Brückel,Th.
Simulation of reflectivity and off-specular scattering of polarised
neutrons from laterally patterned magnetic multilayers
Workshop on Polarised Neutrons in Condensed Matter Investigations
: Forschungszentrum Jülich
Jülich: 16.09.2002 - 19.09.2002
Köbler,U.;
Hoser,A.; Bos,J.; Mueller,R.
Das Heisenberg Modell und die reale magnetische Welt
HGF-Workshop "Kondensierte Materie"
FZJ, Jülich: 06.11.2002 - 06.11.2002
Köbler,U.;
Hoser,A.; Bos,J.; Mueller,R.; Schäfer,W.; Fischer,K.
On the thermodynamic universality classes of Heisenberg type
magnets
ESS-Conference
Bonn: 16.05.2002 - 17.05.2002
Lauter,H.
J.*; Lauter-Pasyuk,V.*; Toperverg,B.; Romashev,L.*; Ustinov,V.*;
Vorobiev,A.*; Major,J.*
Neutron spin selection in off-specular scattering from magnetic
multilayers
ESS-Conference
Bonn: 16.05.2002 - 17.05.2002
Lauter-Pasyuk,V.*;
Lauter,H. J.*; Gordeev,G.*; Müller-Buschbaum,P.*; Toperverg,B.;
Petry,W.*
Magnetic nanoparticles in self-assembled diblock-copolymer films
Workshop on Polarised Neutrons in Condensed Matter Investigations
: Forschungszentrum Jülich
Jülich: 16.09.2002 - 19.09.2002
Lauter-Pasyuk,V.*;
Lauter,H. J.*; Toperverg,B.; Müller-Buschbaum,P.*; Petrenko,A.*;
Petry,W.*; Aksenov,V.*
Self-assembly of magnetite nanoparticles in thin block-copolymer
films by off-specular neutron scattering
ESS-Conference
Bonn: 16.05.2002 - 17.05.2002
Lee,W.-T.*;
te Velthuis,S. G. E.*; Felcher,G. P.*; Klose,F.*; Gredig,T.*; Dahlberg,D.*;
Toperverg,B.
Measuring lateral magnetic structure in thin films using polarised
neutron reflectometry
Workshop on Polarised Neutrons in Condensed Matter Investigations
: Forschungszentrum Jülich
Jülich: 16.09.2002 - 19.09.2002
Massalovitch,S.;
Ioffe,A.; Küssel,E.; Brückel,Th.; Schlapp,M.; Von Seggern,H.*
The optimization of neutron image plate detector with low gamma-sensitivity
ESS-Conference
Bonn: 16.05.2002 - 17.05.2002
Mihaylova,M.;
Seeck,O.; Kim,H.*; Serero,Y.*
Polymer thin films investigated with X-ray reflectivity and diffuse
scattering
HASYLAB User Meeting
Hamburg: 25.01.2002
Mueller,R.;
Chang,L. J.; Appelt,S.; Haesing,W.; Horriar-Esser,Ch.; Ioffe,A.;
Brückel,Th.
Progress in the production of polarised 3He in Jülich
Workshop on Polarised Neutrons in Condensed Matter Investigations
: Forschungszentrum Jülich
Jülich: 16.09.2002 - 19.09.2002
Murphy,B.*;
Stettner,J.*; Sprung,M.*; Weber,R.*; Grotkopp,I.*; Seeck,O.; Müller,M.*;
Tolan,M.*; Press,W.*
Surface behaviour in NbSe2 at the charge density wave phase transition
HASYLAB User Meeting
Hamburg: 25.01.2002
Rücker,U.;
Kentzinger,E.; Toperverg,B.; Ziegenhagen,N.; Brückel,Th.
Off-specular scattering from magnetic structures measured with
full polarisation analysis using HADAS@DIDO, Jülich
REFILL-Workshop : Grenoble
Grenoble: 24.10.2002
Rücker,U.;
Toperverg,B.; Kentzinger,E.; Brückel,Th.
Resonant states in a ferromagnetic quantum well for neutrons
ESS-Conference
Bonn: 16.05.2002 - 17.05.2002
Schlapp,M.;
Massalovitch,S.; Ioffe,A.; Brückel,Th.; von Seggern,H.*
Simulations on properties of neutron image plates
ESS-Konferenz
Bonn: 16.05.2002 - 17.05.2002
Seeck,O.;
Mihaylova,M.; Kim,H.*; Sinha,S. K.*; Lambreva,D.*; Serero,Y.*; de
Jeu,W.*
Investigation of confined and thin polymer films using x-ray
scattering methods
Konferenz 7SXNS
Tahoe City, CA, USA: 22.09.2002 - 27.09.2002
Su,Y.;
Istomin,K.; Schweika,W.; Fattah,A.; Foucart,P.; Meuffels,P.; Brückel,Th.;
Kaiser,V.*
Polarization analysis of diffuse neutron scattering in lightly
doped La1-xSrxMnO3 single crystals
Workshop on Polarised Neutrons in Condensed Matter Investigations
: Forschungszentrum Jülich
Jülich: 16.09.2002 - 19.09.2002
Su,Y.;
Istomin,K.; Schweika,W.; Foucart,P.; Fattah,M.; Meuffels,P.; Brückel,Th.;
Kaiser,V.*
Polarization analysis of diffuse scattering in lightly doped
La1-xSrxMn03 single crystals
ESS-Conference
Bonn: 16.05.2002 - 17.05.2002
Su,Y.;
Schweika,W.; Istomin,K.; Fattah,M.; Foucart,P.; Brückel,Th.
Polarized neutron scattering from magnetic and structural correlations
in lightly doped LaSrMnO single crystals
HGF-Workshop "Kondensierte Materie"
FZJ, Jülich: 06.11.2002 - 06.11.2002
Vad,Th.;
Haubold,H.-G.; Waldöfner,N.*; Bönnemann,H.*
ASAXS investigations of 3-D platinum nanoparticle networks
SAS 2002 - Konferenz
Venedig, Italien: 25.08.2002 - 30.08.2002
Vad,Th.;
Haubold,H.-G.; Waldöfner,N.*; Bönnemann,H.*
ASAXS investigations of 3-D platinum nanoparticle networks
HGF-Workshop "Kondensierte Materie"
FZJ, Jülich: 06.11.2002 - 06.11.2002
Voigt,J.;
Kentzinger,E.; Rücker,U.; Schmidt,W.; Schweika,W.; Brückel,Th.
Magnetic structures and phase transitions in [Er-Tb] multilayers
ESS-Conference
Bonn: 16.05.2002 - 17.05.2002
Voigt,J.;
Rücker,U.; Kentzinger,E.; Toperverg,B.; Brückel,Th.
Von Domänen und Grenzflächen: diffuse Streuung nahe
der Totalreflexion an [Er/Tb] Schichtsystemen
HGF-Workshop "Kondensierte Materie"
FZJ, Jülich: 06.11.2002 - 06.11.2002
Voigt,J.;
Wermeille,D.*; Schweika,W.; Brückel,Th.
Magnetic structure of a thin Er0,7Tb0,3-film
Workshop on Neutron and Synchrotron X-ray Scattering in Condensed
Matter Research : PSI Villigen
Villigen: 03.08.2002 - 06.08.2002
Walter,G.*;
Kranold,R.*; Enke,D.*; Goerigk,G.
SAXS characterisation of porous glasses
SAS 2002 Konferenz
Venedig, Italien: 25.08.2002 - 30.08.2002
Weber,R.*;
Grotkopp,I.*; Stettner,J.*; Press,W.*; Tolan,M.*; Seeck,O.
Metal-polymer interfaces : X-ray reflectivity studies near the
glass transition temperature
HASYLAB User Meeting
Hamburg: 25.01.2002
Ziegenhagen,N.;
Kentzinger,E.; Rücker,U.; Toperverg,B.; Brückel,Th.; van
der Hart,A.; Lehmann,R.; Schelten,J.
Investigation of artificial lateral magnetic structures in Fe/Cr
multilayers with scattering methods
DPG-Frühjahrstagung
Regensburg: 11.03.2002 - 15.03.2002
Ziegenhagen,N.;
Rücker,U.; Kentzinger,E.; Lehmann,R.; van der Hart,A.; Toperverg,B.;
Brückel,Th.
Magnetic properties of laterally structured Fe/Cr multilayers
ESS-Conference
Bonn: 16.05.2002 - 17.05.2002
Ph.D. Theses
Babik,W.
Grenzflächenmorphologie von GMR- und TMR-Schichtsystemen
2002
Aachen, TH
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