% IMPORTANT: The following is UTF-8 encoded. This means that in the presence
% of non-ASCII characters, it will not work with BibTeX 0.99 or older.
% Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or
% “biber”.
@INPROCEEDINGS{Ptter:811987,
author = {Pütter, Sabine and Syed Mohd, Amir and Mattauch, Stefan
and Koutsioumpas, Alexandros and Weber, Alexander and
Schneider, Harald and Brückel, Thomas},
title = {{R}ealization of (quasi) in-situ neutron reflectivity
measurements on ultrathin magnetic films},
reportid = {FZJ-2016-04288},
year = {2016},
abstract = {The magnetic neutron reflectometer with high incident angle
(MARIA) at the Heinz Maier-Leibnitz Zentrum (MLZ) in
Garching,Germany is a dedicated instrument for polarized
neutron reflectometry of thin films. However, due to limited
space a UHV system for thin filmgrowth and in-situ
measurements cannot be placed on-site.Recently, we have
solved this problem by developing a handy mini UHV chamber
which is capable for both, sample transfer and quasi in-situ
measurements at the neutron reflectivity instrument,
respectively. Quasi in-situ polarized neutron reflectivity
(PNR) measurements can be performed at room temperature in
magnetic fields of up to 600 mT. Our solution consists ofa
DN CF-40 cube with two opposing sapphire windows for the
neutron beam, a combined non evaporable getter and ion pump
for keeping the vacuum, a wobble stick, which is needed for
in-situ sample transfer and also serves as sample holder for
samples of up to 1 cm2 and a valve for sample exchange by
mounting the chamberon the MBE system (Figure 1). The
pressure in the transfer chamber is kept in the 10−10 mbar
range during transport and PNR measurement.We present the
first polarized neutron reflectivity measurements on a 2 nm
Co thin film which was grown in our MBE setup and measured
afterwards at MARIA at room temperature in a magnetic field
of 300 mT in the Q-range up to 0.2 Å-1. The data evaluation
clearly shows no oxidation of the Co film. So, samples which
are delicate to handle in ambient conditions can be
successfully measured using our handy UHV chamber.Booking of
the access to the MBE system as well as the transport
chamber for measuring is possible via the MLZ user office
system in combination with an application for a beam time at
the neutron instrument MARIA [1].[1] S. Mattauch, A.
Koutsioubas, and S. Pütter, Journal of large-scale research
facilities 1, A8 (2015),[2] This project is part of the
nanoscience foundy and fine analysis project (NFFA,
www.nffa.eu) and has received funding from the EU’s H2020
research and innovation programme under grant agreement n.
654360.},
month = {Jun},
date = {2016-06-19},
organization = {9th International Symposium on
Metallic Multilayers, Uppsala (Sweden),
19 Jun 2016 - 23 Jun 2016},
subtyp = {After Call},
cin = {JCNS (München) ; Jülich Centre for Neutron Science JCNS
(München) ; JCNS-FRM-II / JCNS-2},
cid = {I:(DE-Juel1)JCNS-FRM-II-20110218 /
I:(DE-Juel1)JCNS-2-20110106},
pnm = {524 - Controlling Collective States (POF3-524) / 6212 -
Quantum Condensed Matter: Magnetism, Superconductivity
(POF3-621) / 6G15 - FRM II / MLZ (POF3-6G15) / 6G4 - Jülich
Centre for Neutron Research (JCNS) (POF3-623)},
pid = {G:(DE-HGF)POF3-524 / G:(DE-HGF)POF3-6212 /
G:(DE-HGF)POF3-6G15 / G:(DE-HGF)POF3-6G4},
experiment = {EXP:(DE-MLZ)MBE-MLZ-20151210 / EXP:(DE-MLZ)MARIA-20140101},
typ = {PUB:(DE-HGF)24},
url = {https://juser.fz-juelich.de/record/811987},
}