Scientific Report 2002/2003

Titles of selected publications Institute Theory I Liquid sulphur - a "simple" polymer? R. O. Jones and P. Ballone Surface vs. bulk Coulomb correlations in photoemission spectra of perovskites A. Liebsch Adhesion between elastic bodies with randomly rough surfaces B.N.J. Persson An Embedded Green-function approach to the ballistic electron transport D. Wortmann, H. Ishida, G. Bihlmayer, and S. Blügel   Institute Theory II Water Molecules and Hydrogen-Bonded Networks in Bacteriorhodopsin Molecular Dynamics Simulation Completes Crystal Structure S. Grudinin , G. Büldt, and A. Baumgaertner Polymer depletion interaction of small anisotropic particles E. Eisenriegler, A. Bringer, and R. Maassen Giant Hexagonal Superstructures in Diblock Copolymer Membranes C. K. Haluskal, W. T. Gozdz, H.-G. Dobereiner, S. Förster and G. Gompper Criterion for phase separation in one-dimensional driven systems Y. Kafri, E. Levine, D. Mukamel, G. M. Schütz, J. Török Kinetics of depletion interactions G. A. Vliegenthart Distribution functions and force-extension relations of semiflexible chains R. G. Winkler   Institute Theory III Ballistic Spin Injection from Fe into ZnSe and GaAs O. Wunnicke, Ph. Mavropoulos, R. Zeller, and P.H. Dederichs Strained Sb-covered Ge-films: Understanding Ge growth on Si(111):Sb(1 ML) A. Antons, Y. Cao, B. Voigtlander, R. Berger, K. Schroeder, S. Blügel On the theory of Boson peak in glasses V. L. Gurevich, D. A. Parshin, and H. R. Schober Liquid-Liquid Phase Change in Systems with Flow R. Rzehak and H. Müller-Krumbhaar Fast crack propagation by surface diffusion Efim A. Brener and Robert Spatschek   Institute Scattering Methods Longitudinal spin fluctuations in 3-D antiferromagnets W. Schweika, S. V. Maleyev, Th. Brückel, V. P. Plakhty, and L.-P. Regnault Amplitude, exponent and quantum state crossover phenomena in the spontaneous magnetization of pure spin magnets U. Kobler, A. Hoser, O. Hupe and J. Hesse Interlayer Exchange coupling in [Er|Tb] multilayers J.Voigt, Th.Brückel, W.Schmidt, and D.Wermeille Magnetic domain formation in a laterally structured Fe / Cr multilayer N. Ziegenhagen, U. Rücker, E. Kentzinger, B. Toperverg, Th. Brückel, R. Lehmann, A. van der Hart Ordering in Ferrofluids Measured on the New Focusing-Mirror USANS Diffractometer KWS-3 A. Vorobiev, G. Gordeev, E. Kentzinger, B. Toperverg Sr2+-Induced Collapse of Sodium Polyacrylate Chains as Assessed by Anomalous Small-Angle X-ray Scattering G. Goerigk, R. Schweins, K. Huber and M. Ballauff Development of the ESS-target-module J.Chen, P.Jung, H.Klein, T.Koppitz, H.Soltner, A.Soukhanova, J.Wolters, M.Rödig, R.Herzog, B.Werner Inelastic Neutron Scattering from CH4 - clathrate, THF- clathrate and Ice H. Conrad, W. Kuhs, K. Nünighoff, M. Prager, W. Schweika   Institute Neutron Scattering Progress report for the construction of the new NSE spectrometer for the SNS M. Ohl, W. Bünten and M. Monkenbusch Segmental dynamics and topological confinement in polymer melts A. Wischnewski, M. Monkenbusch, L. Willner. D. Richter Relaxation mechanisms in deformed linear melts A. Blanchard, M. Heinrich, W. Pyckhout-Hintzen, D. Richter, E. Straube Experimental evidence of a cross-over from Gaussian to non-Gaussian behavior in the alpha-relaxation of polyisoprene A. Arbe, J.Colmenero, F. Alvarez Thermal Composition Fluctuations and Phase Behavior of an A/B/A-B Homopolymer Blend / Diblock Copolymer Mixture V. Pipich, D. Schwalm and L. Willner Lattice dynamics and methyl rotational tunneling of the methyl halides based on universal force fields O. Kirstein , M. Prager The Role of Interfacial Tension for the Structure of PEP-PEO Micelles R. Lund, L. Willner, A. Radulescu, and D. Richter   Institute of Electroceramic Materials Leakage currents through thin film insulators: A new approach H. Schroeder, S. Schmitz and P. Meuffels The correlation between internal interfaces and the high temperature conduction behavior of nanocrystalline and thin film titanates Christian Ohly and Susanne Hoffmann-Eifert The formation of regular SrRuO3 nanopatterns in the early stage of growth on LaAIO3 E. Vasco, R. Dittmann, S. Karthauser and R. Waser Stoichiometry effects in (BaO0.7Sro0.3)TiO3thin films grown by MOCVD F.Fitsilis, S. Regnery, P. Ehrhart Alternative Gate oxides grown by MOCVD A. Teren, S.Regnery, J.Q.He, C.L. Jia, P. Ehrhart Microemulsion mediated synthesis and ceramic processing of nano-crystalline BaTiO3 powders C. Pithan   Institute for Microstructure Research Atomic Resolution Imaging of Oxygen in Perovskite-Based Ceramics Employing a Novel Imaging Mode C. L. Jia, M. Lentzen and K. Urban Ordering of Ruthenium Nanoscale Particles in the SrRuO3 Buffer Layer in SrTiO3/SrRuO3 Bilayer Films on SrTiO3 Substrate Y.L. Qin, C.L. Jia, J.H. Hao, X.X. Xi, K. Urban Dopant Induced Stabilization of LT-grown AlAs/GaAs:Be Multiple Quantum Wells and Superlattices against Thermally Activated Intermixing K. Tillmann and M. Luysberg Quantitative Transmission Electron Microscopy Analysis on the Gas Pressure of Helium Filled Nanocavities in Implanted Silicon N. Hüging, K. Tillmann, M. Luysberg and H. Trinkaus Nanoscale dopant-induced dots and potential fluctuations in GaAs N. D. Jäger, E. R. Weber, and Ph. Ebert Application of Hilbert Spectroscopy to Pulsed Far-Infrared Radiation. V. Shirotov, Y. Y. Divine, M.Liattil, U. Poppe, C.-L. Jia, K. Urban, H. Larue, E. Zimmermann, A. Ahmet, H. Halling, O. Y. Volkov, V.N. Gubankov Operation of high-temperature superconductor magnetometers with submicrometer bicrystal junctions M.I.Faley, U.Poppe, K.Urban, V. Yu. Slobodchikov, Yu. V. Maslennikov, A. Gapelyuk, B. Sawitzki, and A. Schirdewan High-Tc dc-SQUID microscope for information technology U. Poppel, M., Faley, B. Jungbluth, H. Soltner, I. Breunig, R. Speen and K. Urban, E. Zimmermann, W. Glaas, and H. Halling Fabrication process for the growth of large bismuth single crystals for use as neutron filter K.J. Fischer   Institute Electronic Properties Coexistence of strong antiferromagnetic coupling and transport via tunneling in epitaxial Fe/Si/Fe structures R.R. Gareev, L.L. Pohlmann, D.E. Bürgler, and P.A. Grünberg Layered magnetic structures: twisted ground state due to strong antiferromagnetic coupling M. Buchmeier, R. Gareev, D. E. Bürgler and P. Grünberg Dynamic properties of sputtered VITROVAC thin films A.B. Drovosekov, R.R. Gareev, T. Damm, D.E. Bürgler, and P.A. Grünberg, U. Poppe Optimizing the GMR effect in NiFe/Cu/Co pseudo spin-valves prepared by magnetron sputtering Amitesh Paul, Thorsten Damm, Daniel E. Bürgler, and Peter Grünberg, Simon Stein and Hermann Kohlstedt The Electronic Structure of Artificial Quasi-One Dimensional Systems L. Baumgarten, Ch. Zilkens Detection of ferromagnetic spin structure of Manganese in an exchange biased IrMn/CoFe Bilayer J. Morenzin and S. Cramm, D. Schondelmaier, H.A. Dürr and W. Eberhardt   Institute for Soft Matter Nematic Pre-transition of Polybutadiene-b-poly(ethyleneoxide) induced by a wall Peter Lang Shear-Banding in Suspensions of fd-Virus M. P. Lettinga, Z. Dogic and J. K. G. Dhont Dynamics of Strongly Asymmetric Magnetic and Neutral Colloidal Mixtures Gerhard Nägele, Haiyan Zhang and Markus Kollmann Phase separation and membrane formation characteristics in ternary and quaternary EVAL-systems W.F.C. Sager, M.E. Avramescut and M. Wessling Long-ranged attraction between proteins due to non-adsorbing polysaccharide R. Tuinier Shear-Induced Distortion of the Microstructure in near-Critical Colloids H. Wang, M. P. Lettinga

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