TY - JOUR A1 - Avilov, Anatoly S. A1 - Kulygin, Alexander K. A1 - Pietsch, Ullrich A1 - Spence, John C. H. A1 - Tsirelson, Vladimir G. A1 - Zuo, Ming J. T1 - Scanning system for high-energy electron diffractometry Y1 - 1999 UR - http://www3.interscience.wiley.com/journal/118518709/home?CRETRY=1&SRETRY=0 U6 - https://doi.org/10.1107/S0021889899006755 SN - 0021-8898 ER - TY - JOUR A1 - Send, Sebastian A1 - von Kozierowski, Marc A1 - Panzner, Tobias A1 - Gorfman, Semen A1 - Nurdan, Kivanc A1 - Walenta, Albert H. A1 - Pietsch, Ullrich A1 - Leitenberger, Wolfram A1 - Hartmann, Robert A1 - Strüder, Lothar T1 - Energy-dispersive Laue diffraction by means of a frame-store pnCCD Y1 - 2009 UR - http://journals.iucr.org/j/journalhomepage.html U6 - https://doi.org/10.1107/S0021889809039867 SN - 0021-8898 ER - TY - JOUR A1 - Brajpuriya, Ranjeet A1 - Tripathi, Sumit A1 - Sharma, Abhishek A1 - Chaudhari, S.M. A1 - Phase, D.M. A1 - Gupta, Ajay A1 - Shripathi, Thoudinja A1 - Leitenberger, Wolfram A1 - Pietsch, Ullrich A1 - Laxmi, N. T1 - Temperature dependent energy-dispersive X-ray diffraction and magnetic study of Fe/Al interface N2 - In situ temperature dependent energy-dispersive structural and magnetic study of electron beam evaporated Fe/Al multilayer sample (MLS) has been investigated. The structural studies show the formation of an intermixed FeAl transition layer of a few nanometers thick at the interface during deposition, which on annealing at 300 degrees C transforms to B2FeAl intermetallic phase. Magnetization decreases with increase in temperature and drops to minimum above 300 degrees C due to increase in anti-ferromagnetic interlayer coupling and formation of nonmagnetic FeAl phase at the interface. The Curie temperature (T-c) is found to be 288 degrees C and is much less than that of bulk bcc Fe. Y1 - 2007 UR - http://www.sciencedirect.com/science/journal/01694332 U6 - https://doi.org/10.1016/j.apsusc.2007.04.069 SN - 0169-4332 ER - TY - JOUR A1 - Reiche, Jürgen A1 - Pietsch, Ullrich A1 - Fink, Hans-Peter A1 - Lemmetyinen, Helge T1 - A comparison fo x-ray methods for structure refinement of Langmuir-Blodgett multilayers N2 - The possibilities and limits of structure refinement of Langmuir-Blodgett films by means of symmetrical reflection of X- rays are described using the example of a stearic acid multilayer. Three different techniques for the determiantion of the electron density profile from reflectivity data are compared; a Fourier method, a Patterson method, and model calculations. The important role of the a priori information for finding the besft structure model is outlined. Y1 - 1992 ER - TY - JOUR A1 - Reiche, Jürgen A1 - Barberka, Thomas Andreas A1 - Knochenhauer, Gerald A1 - Woolley, Martin A1 - Pietsch, Ullrich T1 - Comprehensive structure investigation and computer modelling of perfluorododecanoic acid multilayers formed by in-vacuo thermal evaporation Y1 - 1994 ER - TY - JOUR A1 - Reiche, Jürgen A1 - Barberka, Thomas Andreas A1 - Janietz, Dietmar A1 - Hofmann, Dieter A1 - Pietsch, Ullrich A1 - Brehmer, Ludwig T1 - X-ray structure investigation and computer modelling of Langmuir-Blodgett films formed from disc-shaped pentaalkines Y1 - 1994 ER - TY - JOUR A1 - Pietsch, Ullrich A1 - Holý, Vaclav A1 - Strömmer, R. A1 - Englisch, Uwe T1 - X-ray and neutron diffuse scattering from multilayers of fatty acid salt molecules Y1 - 1995 ER - TY - JOUR A1 - Reiche, Jürgen A1 - Knochenhauer, Gerald A1 - Barberka, Thomas Andreas A1 - Geue, Thomas A1 - Pietsch, Ullrich A1 - Brehmer, Ludwig A1 - Hodge, P. A1 - Tredgold, Richard H. T1 - In-plane structure of perfluorotetra decanoic acid Langmuir-Blodgett films and films formed by vacuum deposition Y1 - 1995 ER - TY - JOUR A1 - Reiche, Jürgen A1 - Dietzel, Birgit A1 - Freydank, Anke-Christine A1 - Geue, Thomas A1 - Pietsch, Ullrich A1 - Brehmer, Ludwig T1 - Lateral structure of thermally treated oxadiazole Langmuir-Blodgett films Y1 - 1995 ER - TY - JOUR A1 - Geue, Thomas A1 - Stumpe, Joachim A1 - Pietsch, Ullrich A1 - Haak, M. A1 - Kaupp, G. T1 - Photochemically induced changes of optical anisotropy and surface of LB-multilayers built up by an amphiphilic and liquid crystalline copolymer conating azobenzene moieties Y1 - 1995 ER - TY - JOUR A1 - Englisch, Uwe A1 - Barberka, Thomas Andreas A1 - Pietsch, Ullrich A1 - Höhne, U. T1 - Investigation of the chain-chain interface in a lead-stearate multilayer using neutron reflectivity Y1 - 1995 ER - TY - JOUR A1 - Reiche, Jürgen A1 - Penacorada, Florencio A1 - Geue, Thomas A1 - Pietsch, Ullrich A1 - Brehmer, Ludwig T1 - In-plane structure of uranylarachidate multilayers Y1 - 1995 ER - TY - JOUR A1 - Stahn, Jochen A1 - Möhle, Marcus A1 - Pietsch, Ullrich T1 - Accurate structure determination for GaAs using Pendellösung oscillation Y1 - 1996 ER - TY - JOUR A1 - Pietsch, Ullrich A1 - Hansen, N. K. T1 - A critical review of the valence charge density in GaAs Y1 - 1996 ER - TY - JOUR A1 - Lichanot, Albert A1 - Azavant, P. A1 - Pietsch, Ullrich T1 - Ab-initio Hartree-Fock study of the electronic charge density of the cubic boron nitride and its comparison with the experiment Y1 - 1996 ER - TY - JOUR A1 - Reiche, Jürgen A1 - Knochenhauer, Gerald A1 - Dietel, Reinhard A1 - Freydank, Anke-Christine A1 - Zetzsche, Thomas A1 - Pietsch, Ullrich A1 - Brehmer, Ludwig A1 - Barberka, Thomas Andreas A1 - Geue, Thomas T1 - Structure of thermally treated oxadiazoleamide Langmuir-Blodgett films N2 - The thermal treatment of Y-type Langmuir-Blodgett (LB) films formed from the amphiphilic derivative of 2,5- diphenyl-1,3,4-oxadiazole 1 results in changes of the molecular packing. These changes have been analysed by a combination of X-ray specular reflectivity data, X-ray grazing incidence diffraction data and scanning force microscopy images, On the basis of these experimental data we have simulated possible supramolecular structures, These simulations provide insight into the intermolecular interactions giving rise to the observed structural transitions. The crystalline structure induced by thermal treatment of the LB films is characterized by a uniaxial texture, which is correlated with the dipping direction during deposition of the LB film. Y1 - 1997 ER - TY - JOUR A1 - Reiche, Jürgen A1 - Penacorada, Florencio A1 - Geue, Thomas A1 - Pietsch, Ullrich A1 - Brehmer, Ludwig T1 - Monolayers and multilayers of uranyl arachidate : in-plane structure of uranyl arachidate multilayers N2 - The molecular in-plane structure of uranyl arachidate Langmuir-Blodgett (LB) films formed at different subphase pH values was analysed by means of X-ray grazing-incidence diffraction. For multilayers formed at low subphase pH a reorganisation of the arachidic acid film structure is confirmed. At appropriate subphase pH values, reorganisation of the film structure, e.g. via the formation of three-dimensional crystallites, is prevented by the presence of the uranyl ions and by the subsequent introduction of conformational disorder (gauche defects) in the alkyl chains. The observation of a macroscopic flow-induced in-plane texture in these uranyl arachidate LB films has profound implications for the design of ordered, supramolecular structures by the Langmuir-Blodgett technique. Y1 - 1997 ER - TY - JOUR A1 - Pietsch, Ullrich A1 - Barberka, Thomas Andreas A1 - Geue, Thomas A1 - Stömmer, Ralph T1 - X-ray scattering from thin organic films and multilayers Y1 - 1997 ER - TY - JOUR A1 - Englisch, Uwe A1 - Gutberlet, T. A1 - Seitz, R. A1 - Oeser, R. A1 - Pietsch, Ullrich T1 - Thermally induced rearrangement of fatty acid salt molecules in Langmuir-Blodgett multilayers Y1 - 1997 ER - TY - JOUR A1 - Darowski, Nora A1 - Paschke, K. A1 - Pietsch, Ullrich A1 - Wang, K. H. A1 - Forchel, Alfred A1 - Baumbach, Tilo A1 - Zeimer, Ute T1 - Identification of a buried single quantum well within surface structurized semiconductors using depth resolved x-ray grazing-incidence diffraction Y1 - 1997 ER - TY - JOUR A1 - Rose, Dirk A1 - Pietsch, Ullrich A1 - Zeimer, Ute T1 - Characterization of InGaAs single quantum wells buried in GaAs[001] by grazing incidence diffraction Y1 - 1997 ER - TY - JOUR A1 - Bolm, A. A1 - Englisch, Uwe A1 - Penacorada, Florencio A1 - Gerstenberger, M. A1 - Pietsch, Ullrich T1 - Temperature and time dependent investigations of cd- and uranyl-stearate multilayers by means of neutron reflectivity measurements Y1 - 1997 ER - TY - JOUR A1 - Herrmann, A. A1 - Kaupp, G. A1 - Geue, Thomas A1 - Pietsch, Ullrich T1 - AFM and GID investigations of the gas-solid diazotation of 4-sulfanil-acid-monohydrat single crystals Y1 - 1997 ER - TY - JOUR A1 - Paschke, K. A1 - Geue, Thomas A1 - Barberka, Thomas Andreas A1 - Bolm, A. A1 - Pietsch, Ullrich A1 - Rösch, M. A1 - Batke, Edwin A1 - Faller, F. A1 - Kerkel, K. A1 - Oshiniwo, J. A1 - Forchel, Alfred T1 - Characterization of lateral semiconductor nano structures by means of x-ray grazing-incidence diffraction Y1 - 1997 ER - TY - JOUR A1 - Siebrecht, R. A1 - Schreyer, A. A1 - Englisch, Uwe A1 - Pietsch, Ullrich A1 - Zabel, Hartmut T1 - The new reflectometer ADAM at the ILL Y1 - 1997 ER - TY - JOUR A1 - Neißendorfer, Frank A1 - Bolm, A. A1 - Pietsch, Ullrich T1 - Energy dispersive X-ray reflectometry and X-ray grazing incidence diffraction from organic multilayers Y1 - 1997 ER - TY - JOUR A1 - Darowski, Nora A1 - Pietsch, Ullrich A1 - Wang, K. H. A1 - Forchel, Alfred A1 - Shen, W. A1 - Kycia, S. T1 - X-ray diffraction analysis of strain relaxation in free standing and buried GaAs/GaInAs/GaAs SQW lateral structures Y1 - 1998 ER - TY - JOUR A1 - Haier, P. A1 - Herrmann, B. A. A1 - Esser, N. A1 - Pietsch, Ullrich A1 - Lüders, K. A1 - Richter, W. T1 - Influence of the deposition rate on the structure of thin metal layers Y1 - 1998 ER - TY - JOUR A1 - Stahn, Jochen A1 - Pucher, Andreas A1 - Geue, Thomas A1 - Daniel, A. A1 - Pietsch, Ullrich T1 - Electric field induced electron density response of GaAs and ZnSe Y1 - 1998 ER - TY - JOUR A1 - Darowski, Nora A1 - Lübbert, Daniel A1 - Pietsch, Ullrich A1 - Zhuang, Y. A1 - Zerlauth, S. A1 - Bauer, Günther T1 - In-plane strain and strain relaxation in laterally patterned Si/SiGe quantum dots and wire arrays Y1 - 1998 ER - TY - JOUR A1 - Stömmer, Ralph A1 - Göbel, H. A1 - Hub, W. A1 - Pietsch, Ullrich T1 - X-ray scattering from silicon surfaces Y1 - 1998 ER - TY - JOUR A1 - Stömmer, Ralph A1 - Martin, C. R. A1 - Geue, Thomas A1 - Göbel, H. A1 - Hub, W. A1 - Pietsch, Ullrich T1 - Comparative studies of fractal parameters of Si(100) surfaces measured by X-ray scattering and atomic force microscopy Y1 - 1998 ER - TY - JOUR A1 - Darowski, Nora A1 - Pietsch, Ullrich A1 - Zeimer, Ute A1 - Smirnitzki, V. A1 - Bugge, F. T1 - Nondestructive analysis of a lateral GaAs nanostructure buried under AlGaAs using conventional high resolution and grazing incidence X-ray diffraction Y1 - 1998 ER - TY - JOUR A1 - Darowski, Nora A1 - Paschke, K. A1 - Pietsch, Ullrich A1 - Wang, K. H. A1 - Forchel, Alfred A1 - Lübbert, Daniel A1 - Baumbach, Tilo T1 - Structural characterization of a GaAs surface wire structure by triple-axis X-ray grazing incidence diffraction Y1 - 1998 ER - TY - JOUR A1 - Ulyanenkov, A. A1 - Klemradt, U. A1 - Pietsch, Ullrich T1 - Investigation of strain relaxation in GaInAs/GaAs superlattices by x-ray diffuse scattering Y1 - 1998 ER - TY - JOUR A1 - Grenzer, Jörg A1 - Schomburg, E. A1 - Lingott, I. A1 - Ignotov, A. a. A1 - Renk, K. F. A1 - Pietsch, Ullrich A1 - Rose, Dirk A1 - Zeimer, Ute A1 - Melzer, B. J. A1 - Ivanov, S. A1 - Schaposchnikov, S. A1 - Kop'ev, P. S. A1 - Pavel'ev, D. G. A1 - Koschurinov, Yu. T1 - X-ray and transport characterization of an Esaki-Tsu superlattice device Y1 - 1998 ER - TY - JOUR A1 - Stahn, Jochen A1 - Möhle, Marcus A1 - Pietsch, Ullrich T1 - Comparison of theoretical and experimental structure amplitudes of GaAs Y1 - 1998 ER - TY - JOUR A1 - Tsirelson, Vladimir G. A1 - Abramov, Yury Fedorovich A1 - Zavodnik, Valerie E. A1 - Stash, Adam I. A1 - Belokoneva, Elena L. A1 - Stahn, Jochen A1 - Pietsch, Ullrich A1 - Feil, Dirk T1 - Critical pionts in a crystal an procrystal Y1 - 1998 ER - TY - JOUR A1 - Englisch, Uwe A1 - Penacorada, Florencio A1 - Samoilenko, I. A1 - Pietsch, Ullrich T1 - Investigation of the vertical molecular exchange in a complex organic multilayer system Y1 - 1998 ER - TY - JOUR A1 - Zhuang, Y. A1 - Holý, Václav A1 - Stangl, Jochen A1 - Darhuber, A. A1 - Mikulik, P. A1 - Zerlauth, S. A1 - Schäffler, F. A1 - Bauer, Günther A1 - Darowski, Nora A1 - Lübbert, Daniel A1 - Pietsch, Ullrich T1 - Strain relaxation in periodic arrays of Si/SiGe quantum wires determined by coplanar high-resolution x-ray diffrcation and grazing-incidence diffraction Y1 - 1999 ER - TY - JOUR A1 - Zeimer, Ute A1 - Baumbach, Tilo A1 - Grenzer, Jörg A1 - Lübbert, Daniel A1 - Mazuelas, A. A1 - Pietsch, Ullrich A1 - Erbert, G. T1 - In-situ characterization of strain distribution in broad-area high-power lasers under operation by high- resolution x-ray diffrcation and topography using synchrotron radiation Y1 - 1999 ER - TY - JOUR A1 - Englisch, Uwe A1 - Katholy, Stefan A1 - Penacorada, Florencio A1 - Reiche, Jürgen A1 - Pietsch, Ullrich T1 - Investigation of molecular diffusion across organic multilayers using neutron specular reflectivity Y1 - 1999 ER - TY - JOUR A1 - Ulyanenkov, A. A1 - Darowski, Nora A1 - Grenzer, Jörg A1 - Pietsch, Ullrich A1 - Wang, K. H. A1 - Forchel, Alfred T1 - Evaluation of strain distribution in freestanding and bruied lateral nanostructures Y1 - 1999 ER - TY - JOUR A1 - Stahn, Jochen A1 - Pucher, Andreas A1 - Pietsch, Ullrich A1 - Zellner, J. A1 - Weckert, E. T1 - Experimental determination of electric field induced differences in structure factor phases in the order of 2% Y1 - 1999 ER - TY - JOUR A1 - Veldkamp, Markus A1 - Erko, Alexei A1 - Gudat, Wolfgang A1 - Abrosimov, Nikolai V. A1 - Alex, Volker A1 - Khasanov, Salavat A1 - Neissendorfer, Frank A1 - Pietsch, Ullrich A1 - Shekhtman, Veniamin T1 - Si(1-x)Ge(x) laterally graded crystals as monochromators for X-Ray absorption spectroscopy studies Y1 - 1999 ER - TY - JOUR A1 - Ulyanenkov, A. A1 - Baumbach, Tilo A1 - Darowski, Nora A1 - Pietsch, Ullrich A1 - Wang, K. H. A1 - Forchel, Alfred A1 - Wiebach, T. T1 - Investigation of the in-plane strain distribution in free-standing GaAs/InGaAs/GaAs single quantum well surface nanostructures on GaAs[001] Y1 - 1999 ER - TY - JOUR A1 - Holý, Václav A1 - Darhuber, A. A1 - Stangl, Jochen A1 - Zerlauth, S. A1 - Schäffler, F. A1 - Bauer, Günther A1 - Darowski, Nora A1 - Lübbert, Daniel A1 - Pietsch, Ullrich A1 - Vavra, I. T1 - HRXRD and GID investigations of a self-organized SiGe quantum dot multilayer Y1 - 1999 ER - TY - JOUR A1 - Neißendorfer, Frank A1 - Pietsch, Ullrich A1 - Breszisinski, G. A1 - Möhwald, Helmuth T1 - Energy-dispersive reflectometry and diffractometry at the WLS of BESSY-I Y1 - 1999 ER - TY - JOUR A1 - Lübbert, Daniel A1 - Baumbach, Tilo A1 - Ponti, S. A1 - Pietsch, Ullrich A1 - Leprince, L. A1 - Schneck, J. A1 - Talneau, A. T1 - Strain investigation of low strained buried gratings by grazing incidence X-Ray diffraction and the theory of elasticity Y1 - 1999 ER - TY - JOUR A1 - Geue, Thomas A1 - Schultz, M. A1 - Englisch, Uwe A1 - Stömmer, Ralph A1 - Pietsch, Ullrich A1 - Meine, Kerstin A1 - Vollhard, D. T1 - Investigation of pH-dependent domain structure of fatty acid salt Langmuir-Blodgett films by means of X-ray diffuse scattering and Atomic Force Microscopy Y1 - 1999 ER -