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Conferences and Posters of Prof. Dr. Ullrich Pietsch

 
Subject Year
Ullrich Pietsch: Ex-situ and in-situ X-ray nano-diffraction analysis of the structure of core-shell-shell semiconductor nanowires, Invited talk, Nanowire week, Lund 2017
Ullrich Pietsch et al. White beam Laue diffraction of polycrystalline materials using 3D energy dispersive detector (pnCCD) , invited talk, ECM30 Basel 2016
Ullrich Pietch, “In-situ X-ray Diffraction Studies during GaAs MBE Nanowire Growth”, contributed talk SXNS14, Stony, Brook 2016
Ullrich Pietsch “Structure to property relations of single MBE grown GaAs and InAs nanowires onto silicon (111) studied by X-ray nanodiffraction” Invited talk ECM29 Rovinj, Croatia 2015
Ullrich Pietsch et al. "Determination of the phase domain distribution in single semiconductornanowires by means of coherent diffraction imaging" , contributed talk, TMS2015,Orlando, FL 2015
Ullrich Pietsch et al. "Application of energy-dispersive pnCCD detector in material science using hard X-rays , contributed talk TMS2015, Orlando Florida 2015
Ullrich Pietsch et al. X-ray investigation of polytype distributionin InAs Nanowires during MBE growth, contributed talk XTOP, Villard de Lans, 2014
Andreas Biermanns et al. Defects in semiconductor nanowires - individual structure and growth dynamics , invited talk SXNS13, Hamburg 2014
Ullrich Pietsch et al. “ Lattice accomodation at the GaAs Nanowire to Silicon (111) substrate interface after Ga- assited MBE Growth” selected oral talk at SXNS12, Kolkata 2012
Ullrich Pietsch ”X-ray investigation of lattice parameters qnd crystal phases of Ga(In)As Nanowires grown by MPVPE and MBE” International School on Nanoscience with X-rays and Neutron sources” Kolkata 2012
Ullrich Pietsch, Andreas Biermanns, Anton Davydok, Steffen Breuer, Achim Trampert, Lutz GeelhaarLattice parameter accomodation at the GaAs Nanowire to Si (111) substrate interface after Ga-assisted MBE, invited talk DPG Berlin 2012
M. AlTaaini, S. Wagner U.Pietsch,“Electric field induceddeformation in Piezoelectric LiH2PO4 and LiH2PO3“ , Poster XXIII IUCr Congress, Madrid 2011
A.Hüsecken, U.Pietsch “Investigation of the mosaicity in Li2SO4*H20 crystals”, Poster XXIII IUCr Congress, Madrid 2011
Rafael Grifone, U.Pietsch “Time-resolved X-ray diffraction study of LiNbO3 under pulsed external electric field”, oral presentation XXIII IUCr Congress, Madrid 2011
Ullrich Pietsch “Accomodationof lattice parameters at interfaces between GaAs Nanowires and Silicno substrate” invited First workshopm on Machine and Research Aspects of the proposed Turkish Ligth Source, Istanbul Turky 2011
Ullrich Piesch “X-ray strain evaluation at individual semiconductor nanowires” Invited, German Mongolian workshop Ulan-Bataar 2010
S. Send, et al. “Application of frame-store pnCCD in Protein Crystallography”, Poster ECM26, Istambul 2010
Oleg Schmidta, Elmar Neumannb Ullrich Pietsch Experimental electron density distribution in Li2SO4•H2O, Li2SeO4•H2O and LiH2PO4, Poster ECM26 Istanbul 2010
Raphael Grifonea, Oleg Schmidta, Semen Gorfmanb, Ullrich Pietsch “Time-resolved X-ray diffraction study of the piezoelectric response of single crystals”, Oral presentation ECM26, Istanbul 2010
Ullrich Pietsch, “New detection routes for X-ray structure analysis” Invited talk, Gordon Research Conference “Electron Distribution & Chemical Bonding” Mount Holyoke College, South Hadley, MA 2010
Ullrich Pietsch, University of Siegen, Siegen, Germany X-ray strain evaluation at individual semiconductor nanorods , invited talk on 10issrns, Szklarska Poręba , Poland 2010
S. Send, U.Pietsch. Simultaneous spatially, energy- and time-resolved SAXS Measurements using a new pnCCD detector Oral presentation at GISAS 2009, Hamburg 2009
W. Leitenberger, R. Hartmann, S. Send, U. Pietsch, T. Panzner, K. Nurdan, L. Strüder Application of a pnCCD in X-ray diffraction- a 3D x-ray detector Poster Presentation at XTOP 2008, Linz/Austria 2008
U. Pietsch and B. Brüser, “Kinematic and dynamic light scattering from 3D photonic Crystals”, Invited talk SPIE Proc. Security and Defense Berlin 2009
A. Biermanns, A. Davydok, H. Paetzelt, J. Bauer, V. Gottschalch, U.Pietsch, T.H. Metzger, „Structure Investigations of individual GaAs Nanorodsby Coherent Diffraction Imaging, Poster at X-ray GORDON Conference, POSTER AWARD 2009
Sebastian Send, Marc von Kozierowski, Tobias Panzner, Semen Gorfman, Kivanc Nurdan, Albert Walenta, Ullrich Pietsch, Wolfram Leitenberger, Robert Hartmann, and Lothar Strüdere, Energy dispersive Laue diffraction by means of a Frame store pnCCD, Poster on SAGAMORE XVI, Santa Fe 2009
O. Schmidt , S. Gorman, U.Pietsch, P.Becker and L. Bohaty, “X-ray diffraction Study of Piezoelectric Crystal Response on the Nanosecond Time Scale”, Oral Talk on ECM25, Istanbul 2009
Ö.Kurtulus, U.Pietsch, High-Efficency Core-shell Nanwires and their characterization by X-ray diffraction”, Poster, ECM25, Istanbul 2009
A. Davydok, A. Biermanns, H. Paetzelt, J. Bauer, V. Gottschalch, U.Pietsch, T.H. Metzger, „Structure Investigations of individual GaAs Nanorodsby Coherent Diffraction Imaging, Poster ECM25, Istanbul 2009
Sebastian Send, U.Pietsch et al. : Application of pnCCD for energy-dispersive Laue Diffraction, Poster IUCr, Osaka 2008
A. Davydok, U.Pietsch et a. Initial State of VLS-growth of InAs nanorods on GaAs (111) probed by X-ray diffraction and TEM, Poster on IUCr, Osaka 2008
Ullrich Pietsch “New Possibilities for time-resolved x-ray diffraction studies” Oral talk At European charge densiry Meeting Gravedonna, Lake Como 2008
Ullrich Pietsch, Martin Lommel, Yves Bodenthin, Dirk Kurth, Gutram Schwarz, Helmut Möhwald, “Supercooled High Spin Staste in Metallo-Supramolecular Assemblies“, Poster ECM24 Marrakech 2008
Ullrich Pietsch, Andreas Biermanns, Jörg Grenzer, Jens Bauer, Volker Gottschalch, „Grazing-Incidence diffraction from free standing InAs/GaAS nanorods“ oral talk on TRIP 2007 Berlin 2007
Ullrich Pietsch, Andreas Biermanns, Jörg Grenzer, Jems Bauer, Volker Gottschalch, „Grazing-Incidence diffraction from free standing InAs/GaAS nanorods“ invited talk on EMRS Warschau 2007
Ullrich Pietsch “Electric field induced lattice displacements In BiB3O6 crystals”, Oral talk on 24 European Crystallographic Meeting Marrakech 2007
Ullrich Pietsch and Oliver Seeck : “Beam line design for synchrotron radiation for high resolution diffraction” Keynote Lecture on 2007 Sino-German High Level Expert Symposium on X-ray Optics, Shanghai 2007
Ullrich Pietsch, Semen Gorfman, Oleg Schmidt, Marcus Schmidt, Horst Borrmann, Yuri Grin, Vladimir Tsirelson : Charge density variations in ternary compounds under influence of an external electric field”, poster at Sagamore XV, Bosworth Hall Hotel, Warwickshire, UK 2006
D. Ksenzov, S. Grigorian, U.Pietsch “X-ray reflectivity at multilayers using femtosecond pulses of VUV-FEL”, Poster at 9SXNS, Teipei 2006
T. Panzner, G. Gleber, T. Sant, W. Leitenberger and U. Pietsch „Coherence experiments at the white-beam beamline at BESSYII“ Poster at 9SXNS, Teipei 2006
S. Kowarik , A. Gerlach, W. Leitenberger, J. HU, G. Witte, C. Wöll, U. Pietsch, F. Schreiber : “Energy-dispersive X-ray reflectivity and GID for Real-Time Growth Studies for Pentacene Thin Films”, contributed talk 9SXNS, Teipei 2006
O. Henneberg, K. Morawetz, B. Schulz , B. Dietzel, M. Saphiannikova, M.Roth and U. Pietsch, „Diffraction properties of 3D azobenzene-polymer gratings“ Invited talk at PhotonicsNorth, Quebec 2006
S.Gorfman, V.Tsirelson, U.Pietsch, “Site selective response of α-GaPO4 crystals to a permanent external electric field”, 4th. European Charge Density Meeting, Brandenburg 2006
T.Panzner, G. Gleber, K.Morawetz, U.Pietsch Coherent Reflectivity at the EDR beamline at BESSY II, IgeSA Island de Porquerolles, France 2005
U.Pietsch, S.Gorfman, V.Tsirelson , Bond-dependent crystal response on electric field : Synchrotron diffraction study, poster presentation on 20th IUCr Congress, Florence, 2005
J.Grenzer, U.Pietsch, S.Grigorian, S.Hazra, T.K. Chini, M.K. Sanyal : Ripple formation of ion-beam induced Si Wafers, contributed talk on 20th IUCr Congress, Florence 2005
U. Pietsch „In-situ VIS and X-ray scattering investigations of surface relief grating formation in polymer films containing azobenzene moieties“ invited talk on 8th International conference on Frontiers of Polymer and Advanced Materials, Cancun, Mexico 2005
J. Grenzer and U.Pietsch „X-ray investigation of low-energy ion-beam induced lateral semiconductor surface Nanostructures invited talk at Asian Material Res. Soc. Taiwan 2004
U.Pietsch “Electron Density Determination under not Ambient Conditions”. Key-note Lecture at ECM22, Budapest 2004
A. Jarre, T.Panzner, U.Pietsch, F.Pfeiffer, T.Salditt “White beam X-ray waveguide optics” poster contribution at 8th international conference on Surface X-ray and Neutron Scattering, Bad Honnef, Germany 2004
W.Leitenberger, T.Panzner, U.Pietsch „X-ray interferometry and ist application“ poster contribution at 8th international conference on Surface X-ray and Neutron Scattering, Bad Honnef, Germany 2004
T.Panzner, W.Leitenberger, U.Pietsch, I.Vartanyants “Coherence experiments at the EDR-beamline of BESSY II”, poster contribution at 8th international conference on Surface X-ray and Neutron Scattering, Bad Honnef, Germany 2004
U.Pietsch. T. Panzner, F.Pfeiffer, I.K. Robinson “Substrate morphology repetition in thick polymer films” poster contribution at 8th international conference on Surface X-ray and Neutron Scattering, Bad Honnef, Germany 2004
U.Pietsch “White beam reflectometry and coherent scattering at the EDR beamline of BESSY II” invited talk at 8th international conference on Surface X-ray and Neutron Scattering, Bad Honnef, Germany 2004
U.Pietsch and U.Zeimer „Nanoengeneering of lateral strain-modulation in semiconductor quantum-well heterostructures” invited talk on HREDAMM, Zakopane, International conference on Computing Methods in High Resolution Diffraction Applied for Structure Characterization of Modern Materials 2004
U.Pietsch, U.Zeimer : „Nanoengeneering of lateral strain-modulation in semiconductor quantum-well heterostructures” invited talk on iconosat, International Conference on Nanoscience and Technology, Kolkata, India 2003
J. Davaasambuu. V.Kochin, A.Pucher, P.Blaha and U.Pietsch: “The atomistic origin of the inverse piezoelectric effect in a-SiO2 and GaPO4” Sagamore XIV , Broome Australia 2003
Leitenberger, W. et al. Pinhole interfeometry with coherent hard X-rays contributed talk @ 17th International conference on X-ray optics and microanalytic (ICXOM), Chamonix (France) 2003
J.Grenzer, U.Pietsch, B.Köhler „Depth resolved strain analysis of lateral nanostructures produced by focused Ga ion implantation in GaAs“, contributed talk at X-ray Denver conference 2003
J.Grenzer and U.Pietsch „Structure Investigations of thin Films and Lateral Nanostructures by means of X-Ray Grazing Incidence Diffraction”, invited talk at X-ray Denver Conference 2003
T.Panzner, J.Grenzer, W.Leitenberger, U.Pietsch „Coherence experiments at the Energy-Dispersive EDR-beamline at BESSY II” Gordon X-ray Conference, Bristol, RI 2003
J.Davaasambuu. V.Kochin, A.Pucher, S.Gorfman, V.Tsirelson, P.Blaha and U.Pietsch: “The atomistic origin of the inverse piezoelectric effect in a-SiO2 and GaPO4” ECDM-III -3rd European Charge Density Meeting, Sandberg Estate, Denmark 2003
J.Grenzer and U.Pietsch „High-resolution X-ray diffraction form surface relief nanostructures : General results and apparative requirement” Workshop on condensed matter applications at PETRA III, Hamburg 2002
U.Pietsch. J.Davaasambuu, V.Kochin “E-field induced charge density variations in a-Quartz” contributed talk in Rigi-Workshop on crystal physics, Rigi-Alm, Switzerland 2002
S.A. Grigorian, J. Grenzer, S. Feranchuk, U. Zeimer, U.Pietsch, „GRAZING-INCIDENCE DIFFRACTION STUDY OF A STRAIN-MODULATED SINGLE QUANTUM WELL NANOSTRUCTURES” , poster XTOP, Aussois, France 2002
O.Henneberg,Th.Geue, M.Saphiannikova, U.Pietsch, “Xray and VIS light scattering from light-induced polymer gratings” poster X-TOP, Aussois, France 2002
T.Panzer, J. Grenzer, A. Pucher, and U. Pietsch „Coherent X-Ray Scattering at Dipole Beamline EDR at BESSY II” , poster XTOP, Aussois, France 2002
J. Grenzer, F. Gao, U. Pietsch “Studying laterally-ion-modulated surface grating by x-ray grazing incidence diffraction”, contributed talk, X-TOP, Aussois, France 2002
U.Pietsch, Th. Geue, O.Henneberg, M.Saphiannikova, P.Rochon, A.Natansohn “X-ray investigation of light-induced polymer surface gratings” contributed talk on SXNS7, Lake Tahoe, CA, 2002
U.Pietsch, J.Grenzer, R.Lauter, A. Pucher „Time resolved X-ray scattering at the EDR beamline at BESSY II“ talk on European Meeting on Time-resolved Investigations of Structural Chnages in Soft and Solid Matter with Neutrons and X-rays” Sommerfeld, BRD 2002
Y. Bodenthin J. Grenzer, R. Lauter, Th. Geue, U. Pietsch, D. Kurth and P. Lehmann „Investigation of metallo-supramolecular polymers in thin films using synchrotron radiation” Poster at ECOF 8, Lecce/Italy 2001
O. Henneberg, T. Geue, M. Saphiannikova, U.Pietsch, A.Natansohn, P.Rochon, F. Finkelstein “Dynamics of Surface Relief Grating Formation : A Viscoelastic Model Gives Good Agreement to VIS-light and X-ray Scattering Experiments” talk at ECOF 8, Lecce, Italien 2001
S. Grigorian, U. Pietsch, J. Grenzer, I. Vartanyans “Inelastic scattering of x-rays by thermal phonons in grazing-incidence diffraction conditions” , Internat. Conf. On inelastic x-ray scattering, IXS 2001, Haikko, Finland 2001
J. Grenzer, U. Zeimer, U.Pietsch, S.Gramlich, F. Bugge, V. Smirnitzki, Ch. Lienau, S. Grigorian, M.Weyers, G.Tränkle “Carrier Confinement of a InGaAs QW Induced by a Periodical Stressor Layer” Internat. Conf. On Modulated Semiconductor Structures; MSS 10, Linz, Austria 2001
A. Natansohn, P. Rochon, U.Pietsch, Th. Geue, O.Henneberg, M. Saphiannikova „Formation and Dynamics of Polymer Surface Relief Gratings“ , Main talk at Europolymer Congress, Eindhoven, NL, 2001
U. Pietsch Th. Geue, M.Saphiannikova, O.Henneberg, P.Rochon and A.Natansohn “ Formation mechanism and dynamics in polymer surface gratings” Poster at X-ray GORDON-Research Conference 2001, New London (CT), USA 2001
J. Davaasambuu, A.Pucher U.Pietsch “Electric field induced electron density variations in alpha-quartz and gallium phosphate “ Poster on Gordon Research Conference on “Electron distribution and Chemical bonding”, South Hadley, MA, USA 2001
T.M. Geue, O. Henneberg, M. Saphiannikova, U. Pietsch, A. Natasohn and P. Rochon “Investigation of material flow on inscribing a polymer surface grating probing X-ray and VIS light scattering” MRS Spring meeting, O10.5 San Francisco, CA, USA 2001
Th. Geue O.Henneberg, J.Grenzer, U.Pietsch, A.Natansohn, P.Rochon “Formation of buried density grating on thermal erasure of azobenzene polymer surface gratings”, MRS Spring meeting, R10.6 San Francisco, CA, USA 2001
O.Henneberg, Th. Geue, M. Saphiannikova, U.Pietsch, P. Rochon and A. Natansohn „Formation and Dynamics of Polymer Surface Relief Gratings” invited talk “Nanostructures” Calcutta 2001
J. Grenzer, N. Darowski, A. Daniel, J.P. Reithmaier, A. Forchel and U. Pietsch ”Grazing-incidence diffraction strain analysis of a laterally modulated QW system produced by focused ion implantation”, poster XTOP, Ustron- Jaszowiec, 2000
A. Ulyanenkov, U. Pietsch, K. Omote, N. Darowski, J. Grenzer, K. Inaba, P. Mikulik and A.Forchel ”X-ray diffraction and reflectivity analysis of free-standing quantum wires” oral talk on XTOP, Ustron- Jaszowiec, 2000
M.K.Sanyal, M.Mukhopadhyay, A.Datta, J.K.Basu, Th.Geue and U.Pietsch ”Diffuse integrated reflectivity and grazing-incidence diffraction studies on melting of Langmuir-Blodgett films”, oral talk on XTOP, Ustron- Jaszowiec, 2000
U. Zeimer, J. Grenzer, U. Pietsch, S. Gramlich, F. Bugge, V. Smirnitzki, M. Weyers and G.Tränkle ”Investigation of strain-modulated InGaAs-nanostructures by grazing-incidence X-ray diffraction and photoluminescence” oral talk on XTOP, Ustron- Jaszowiec, 2000
A.Avilov, G.Lepeshov, A.Kuliygin, V.Tsirelson, U.Pietsch and J.Spence ”First quantitative analysis of bonding in covalent and ionic crystals by high-resolution electron diffraction”, Poster on SAGAMORE XIII, Stare Jablonski 2000
J.Davaasambuu, A.Daniel, J.Stahn and U.Pietsch ”Comparison of experimental valence charge densities of the isoelectronic series Ge,GaAs and ZnSe” Poster on SAGAMORE XIII, Stare Jablonski 2000
U.Pietsch ”Electric field induced charge density variations in semi-ionic compounds” oral talk on SAGAMORE XIII, Stare Jablonski, 2000
Th.Geue, O.Henneberg, J.Grenzer, U.Pietsch, A.Natansohn, P.Rochon and K.D. Finkelstein ”Formation of a buried density grating on thermal erasure of azobenzene polymer surface gratings” oral presentation on International Conference on Organized Molecular Films, LB9, Potsdam 2000
O.Henneberg, Th.Geue, M.Saphiannikova, A.Natansohn, P.Rochon and K.D. Finkelstein ”Investigation of Material flow on inscribing a polymer surface grating probing x-ray and visible light”, oral presentation International Conference on Organized Molecular Films, LB9, Potsdam 2000
U.Pietsch, J.Grenzer, Th.Geue, F.Neissendorfer, G.Brezesinski, Ch.Symietz , H.Möhwald and W.Gudat ” The energy dispersive reflectometer at BESSY II: A Challenge for thin film analysis” poster at SRI 2000, Berlin 2000
U.Pietsch, J.Grenzer, Reithmeier, ”GID strain analysis of laterally modulated Quantum well systems produced by focused ion implantation” seminar talk at SLEC Stanfort, 2000
U.Pietsch, T.Geue, O.Henneberg, P.Rochon and A.Natansohn ”Creation of a buried lateral nanostructure in amorphous polymer films containing azobenzene sinde groups” MRS-Spring Meeting San-Francisco 2000
U.Pietsch, U.Zeimer, J.Grenzer. L.Hofmann and S.Gramlich ”Strain induced compositional modulations in AlGaAs overlayers induced by lateral surface gratings” MRS-Spring Meeting San-Francisco 2000
U.Pietsch ”Investigation of semiconductor interfaces by X-ray grazing-incidence diffraction” Dept.of Physics Colloqium, Queens Univ.Kingston , ON, Canada , invited talk 2000
U.Pietsch ”Investigation of semiconductor interfaces by X-ray grazing-incidence diffraction” invited talk on Indian Meeting on Material Research using Accelerator Facilities Calcutta 1999
Y.Zhuang, J.Stangl, T.Roch, G.Bauer, S.Zerlauth, F.Schäffler, U.Pietsch, N.Darowski, V.Holy ”Investigation of inhomogeneous strain relaxation in dry etched SiGe/Si quantum wires using X-ray grazing- incidence diffraction” MRS Fall Meeting , Boston 1999
U.Pietsch, J.Stahn "Electric Field induced charge density variations in covalently bonded binary compounds" European Charge Density Meeting ECDM-II, Sitges (Barcelona) Spain, 1999
U.Pietsch N.Darowski, K.H.Wang and A.Forchel: " Depth-resolved Investigation of the strain distribution in lateral Nanostructures" 6th. SXNS, Noordwijkerhout, The Netherlands, 1999
U.Pietsch, Th.Geue, J.Schultz, J.Grenzer, A.Natansohn and P.Rochon "In-situ X-ray and VIS reflectivity investigations of light-induced surface patterning in polymer films" GORDON X-ray conference , Plymoth, NH., U.S.A. 1999
U.Pietsch "Investigation of the dynamics of surface pattern formation in azo-polymer films using X-ray and VIS light scattering" Instituts-Colloquium, Chemistry Dept., Queens University, Kingston, Ontario 1999
U.Pietsch "X-Ray Diffraction Analysis of Semiconductor and Polymer Surface Patterns" Kolloqiumsvortrag Wilson Lab. (CHESS) Cornell University 1999
U.Pietsch , U.Englisch,S.Katholy, J.Reiche "Spin-Resolved Neutron Reflectometry From Partially Deuterated Multilayers from Fatty Acid Salts", poster at ACA Annual Meeting, Buffalo , U.S.A 1999
Th.Geue, U.Pietsch, M.Schultz, A.Natansohn, P.Rochon "In-situ X-Ray reflectivity Investigations of the Visible-Light Induced Surface Patterning in Polymers", contributed talk on ACA Annual Meeting , Buffalo 1999
U.Pietsch, J.Stahn, A.Pucher, A.Daniel "Electric-Field Induced Valence Charge Density Response in GaAs and ZnSe" Annual Meeting of American Crystallographic Association, Arlington, Virgina USA 1998
U.Englisch, S.Katholy, F.Penacorada, J.Reiche, U.Pietsch "Investigation of the molecular diffision across organic multilayers using neutron reflectivity" 7th. European Conference on Organic Films, Potsdam 1998
Y.Zhuang, V.Holy, J.Stangl, A.A.Darhuber, P.Mikulik, S.Zerlauth, F.Schäffler, G.Bauer, N.Darowski, D.Lübbert, U.Pietsch Strain relaxation in periodic arrays of Si/SiGe quantum wires determined by coplanar high-resolution X-ray diffraction and grazing-incidence diffraction", XTOP 98, Durham 1998
U.Zeimer, T.Baumbach, J.Grenzer, D.Lübbert, A.Mazuelas, U.Pietsch, G.Erbert" "In-situ characterization of strain distribution in broad area high power lasers under operation..." XTOP 98, Durham 1998
N.Darowski, U.Pietsch, K H.Wang, A.Forchel and U.Zeimer: "X-ray diffraction analysis of the compositional modulation in Al(y)Ga(1-y)As Overlayers induced by the in-plane strain of buried GaAs/In(x)Ga(1-x)As/GaAs surface gratings" XTOP 98, Durham 1998
A.A.Darhuber, J.Stangl, V.Holy, Y.Zerlauth, G.Bauer, N.Darowski, D.Lübbert, U.Pietsch: "Strain and Strain Relaxation in Si(1-x)Ge(x) Dot Multilayers Embedded In Silicon" Int.Conference on Physics of Semiconductors. Jerusalem 1998
N.Darowski, U.Pietsch, K.H.Wang, A.Forchel, S.Kycia, Q.Shen "Analysis of Strain Relaxation in Free Standing and Buried SQW-Lateral Structures" Poster at European Crystallographic Meeting -18 Prag 1998
J.Stahn, A.Pucher and U.Pietsch "Electric Field Induced Electron Density Response of GaAs and ZnSe" Poster at European Crystallographic Meeting -18 Prag 1998
A.Avilov, G.Lepeshov, A.Kulygin, V.Zavodnik, E.Belokoneva, V.Tsirelson, J.Stahn, U.Pietsch, J.Spence "Quantitative Reconstruction of Electrostatic Potential in MgO and NaF by Electron and X-Ray Diffraction" Poster at European Crystallographic Meeting -18 Prag 1998
U.Pietsch, N.Darowski, K.H.Wang, A.Forchel, Q.Shen, S.Kycia "X-Ray Diffraction Analysis of Free Standing and Overgrown Surface Nanostructures" invited talk, European Crystallographic Meeting -18 Prag 1998
R.Stömmer, A.R.Martin, W.Hub, H.Göbel, U.Pietsch "X-ray scattering from silicon surfaces: A useful tool for quality control" E-MRS Meeting Strasburg 1998
N.Darowski, U.Pietsch, K.-H.Wang, A.Forchel, Q.Shen and S.Kycia "Analysis of the strain relaxation of free standing and buried GaAs/GaInAs/GaAs SQW lateral structures by means of x-ray diffraction", E-MRS Meeting Strasburgh 1998
R.Siebrecht, A.Schreyer, U.Englisch, U.Pietsch, H.Zabel "The New Reflectometer ADAM at ILL" International Conference on Neutron Scattering, Toronto, Canada 1997
U.Englisch, J.Reiche, F.Penacorada, B.Diezel, U.Pietsch, L.Brehmer "Neutron and X-ray reflectivity investigations of alternating LB superlattices" 8th International Conference on Organized Molecular Films, Asilomar, CA U.S.A. 1997
P.Haier, B.A.Herrmann, N.Esser, U.Pietsch, K.Lüders and W.Richter "Influence of the deposition rate on the structure of thin metal layers" E-MRS Strasburgh 1997
U.Pietsch and J.Stahn "Bond-charge properties of the isoelectronic compounds Ge, GaAs, ZnSe studied with difference density maps of X-ray structure amplitudes" Poster at SAGAMORE XII, Waskesiu, Saskatchewan, Canada 1997
J.Stahn, A.Pucher and U.Pietsch "Electric-field induced charge-density variations in GaAs" Poster at SAGAMORE XII, Waskesiu, Saskatchewan, Canada 1997
N.Darowski, U.Pietsch, D.Lbbert, T.Baumbach, Y.Zhang, S.Zerlauth and G.Bauer "Triple-axis X-ray grazing incidence analysisof a vertically structurized quantum dot array" ad-hoc Poster at Fifth International Conference on "Surface X-Ray and Neutron Scattering" Oxford 1997
N.Darowski, K.Paschke, U.Pietsch, K.H.Wang, A.Forchel, T.Baumbach, U.Zeimer "Characterization of free standing surface nanostructures using coplanar and non-coplanar X-ray diffraction" Poster at Fifth International Conference on "Surface X-Ray and Neutron Scattering" Oxford 1997
A.Schreyer, R.Siebrecht, U.Englisch, U.Pietsch and H.Zabel "ADAM, a new reflectometer at ILL" Poster at Fifth International Conference on "Surface X-Ray and Neutron Scattering" Oxford 1997
U.Englisch, F.Penacorada, I.Samoilenko and U.Pietsch "Investigation of the vertical molecular exchange in a comlex organic multilayer system" Poster at Fifth International Conference on "Surface X-Ray and Neutron Scattering" Oxford 1997
A.Ulyanenkov, U.Klemradt and U.Pietsch "Investigation of strain relaxation in GaInAs/GaAs superlattices by X-ray scattering" Poster at 5fth Internat.Conf. on "Surface X-Ray and Neutron Scattering" Oxford 1997
G.T.Baumbach, U.Pietsch, D.Lübbert, N.Darowski, L.Leprince, A.Talneau, J.Schneck "Grazing Incidence Diffraction by Epitaxial Multilayer Gratings" Oral presentation at Fifth International Conference on "Surface X-Ray and Neutron Scattering" Oxford 1997
J.Stahn and U.Pietsch "Comparison of experimental and theoretical valence charge densities of GaAs" Oral presentation at First European Charge Density Meeting, Les Premontres, Nancy, FRANCE 1996
Bolm A., Englisch U., Penacorada F., Gerstenberger M., Pietsch U., " Temperature and Time Dependent Investigations of Cd- and Uranyl-Stearate Multilayers by means of Neutron Reflectivity Measurements" 6th European Conference of Ordered Films, Sheffield 1996
Reiche J., Dietzel B., Knochenhauer G., Freydank A., Zetzsche T., Geue T., Barberka T.A., Pietsch U., Brehmer L., " Structure of Thermally Treated Oxadiazoleamide Langmuir Blodgett Films" 6th European Conference of Ordered Films, Sheffield 1996
Reiche J., Penacorada F., Zetzsche T., Geue, T., Barberka T.A., Pietsch U., Brehmer L. "In-plane Structure of Uranyl Arachidate Multilayers" 6th European Conference of Ordered Films, Sheffield 1996
Th.Geue T. and U. Pietsch "Real Structuree Investigations on Thin Organic Multilayers of Amphotropic Side Chain Azocopolymers"; 36th IUPAP International Symposium on Macromolecules, Seoul 1996
V.E.Zavodnik, Yu.Abramov, A.I.Stash, E.Belokoneva, A.S.Avilov, U.Pietsch, J.Stahn, D.Feil and V.G.Tsirelson "Electron density and properties of rock-salt type crystals" Poster on XVII Congress and General Assembly of International Union of Crystallography, Seattle, 1996
J.Stahn, M.Möhle and U.Pietsch "New Precise X-ray Structure Amplitudes of GaAs Obtained by Means of the Pendellösung Method" Poster at XVII Congress and General Assembly of the International Union of Crystallography, Seattle, USA, 1996
F. Neissendorfer, A. Bolm and U. Pietsch "Energy dispersive X-ray reflectometry and X-ray grazing incidence diffraction from organic multilayers" 3rd International School and Symposium on Synchrotron Radiation in Natural Science, Jasowiec, Poland 1996
K.Paschke, T.Geue, T.A.Barberka,A.Bolm, U.Pietsch, M.R”sch, E.Batke, F.Faller, K.Kerkel, J.Oshiniwo and A.Forchel "Characterization of lateral semiconductor nano structures by means of X-ray grazing- incidence diffraction" poster presentation at "3rd European Symposium on X-ray Topography and High Resolution Diffractometry", Palermo, Italy , 1996
U.Pietsch and D.Rose "Depth selective analysis of buried semiconductor layers using X-ray grazing incidence diffraction" invited talk on XVII Congress and General Assembly of the International Union of Crystallography, Seattle, USA, 1996
U.Pietsch "The domain structure of LB-Multilayers prepared from fatty acid salts" invited talk on 45th Annual Denver X-Ray Conference, Denver, Colorado, 1996
U.Pietsch, T.A. Barberka, U.Englisch and R.Stömmer "X-ray scattering from thin organic films and multilayers" invited talk on "3rd European Symposium on X-ray Topography and High Resolution Diffractometry", Palermo, Italy 1996
M.Möhle, J.Stahn and U.Pietsch "Accurate structure determination for GaAs using Pendellösung oscillation" German-Japanese workshop on the use of ultra-short wavelength photons and g-rays for high precision, high resolution analysis of electronic states of solids" Hamburg 1996
U.Pietsch, T.A.Barberka, U.Englisch and R.Stömmer " The domain structure of L.B.multilayers prepared from fatty acid salts" invited talk on 7th International Conference on Organized Molecular Films, Ancona 1995
R.Stömmer, U.Englisch, U.Pietsch and V.Holy " X-ray and neutron diffuse scattering from multilayers of fatty acid slat molecules" 4th International Conference on Surface X-ray and Neutron Scattering, Lake Geneve, Wisconcin 1995
D. Rose and U.Pietsch " Grazing-Incidence X-ray Diffraction Studies of the Relaxation Behavior in GaInAs/GaAs Multilayers Grown on GaAs[001]" MRS Spring-Meeting San-Francisco 1995
D.Rose, U.Pietsch, V.Gottschalch and H.Rhan "Investigation of single quantum wells InAs/GaAs[001] using grazing incidence X-ray diffraction" 2nd European Symposium , X-ray Topography and High Resolution Diffraction", Gosen 1994
D.Rose,U.Pietsch, A Förster and T.H.Metzger " Depth resolved investigations of the relaxation behaviour in strained GaInAs/GaAs superlattices using grazing incidence X-ray diffraction" First European Conference on Synchrotron Radiation in Material Sciences, Chester 1994
Th.Geue, J.Stumpe, U.Pietsch and G.Kaupp " Photochemically induced changes of optical anisotropy and surface of LB-multilayers built up by an amphotropic copolymer containing azobenzene moieties" Internat. Conf. on Photochemistry, Prag 1994
U.Pietsch " Time resolved investigations of thin organic films by means of energy dispersive X-ray reflectometry" Workshop on X-ray and neutron reflectivity on thin films and interfaces, Paris 1994
F.Neissendorfer, F.Schäfers, J.Grenzer aund U.Pietsch " A Newly installed reflectometer at BESSY" 3nd European Powder Diffraction Conference, EPDIC-3, Wien 1993
D.Rose, U.Pietsch, A.Förster and H.Metzger "Depth resolved investigation of the relaxation bahaviour in strainded GaInAs/GaAs superlattices using grazing incidence X-ray diffraction" 3nd International Conference on Surface X-Ray and Neutron Scattering, Dubna 1993
T.Barberka, U.Pietsch, U.Höhne and T.H.Metzger "Investigation of the in-plane structure of Pb- and Ni-stearate multilayers by means of grazing incidence X-ray diffraction" Sixth International Conference on Organized Molecular Films, Trois-Riveres,Quebec 1993
U.Pietsch, T.Barberka, W.Mahler, T.H.Metzger " Real structure investigations of organic multilayers by means of diffuse x-ray scattering experiments" Sixth International Conference on Organized Molecular Films, Trois-Riveres,Quebec 1993
T.Baumbach, D.Martin und U.Pietsch " Grazing incidence X-ray diffraction and its interdependence on the specular X-ray reflectivity in case of a semiconductor superlattice" EPS Tagung - Regensburg 1993
D.Rose, U.Pietsch, H.Metzger und A.Förster " Investigation of the lattice relaxation in GaInAs/GaAs[001] strained layer superlattices by means of grazing incidence diffraction" EPS- Tagung - Regensburg 1993
T.Barberka, U.Pietsch, H.Metzger und U.Höhne "Evaluation of 3D-Structure of Pb-stearate multilayers by means of grazing incidence diffraction" EPS Tagung - Regensburg 1993
U.Pietsch: "Identification of an enlarged quantum well in semiconductor superlattices by grazing incidence X-ray diffraction" XIII European Crystallographic Meeting, Enschede 1992
H.Merle, G.Schultes, H.Metzger and U.Pietsch: "The advantage of the energy dispersive X-ray reflectivity technique for the investigation of dynamical processes in Langmuir-Blodgett multilayers" ECOF 92 - Bangor/Wales 1992
U.Pietsch "Depth Selective Real Structure Analysis of Inorganic and Organic Multilayers by Means of Grazing Incidence X-ray Diffraction" Invited Lecture on 50th Annual Meeting of the American Crystallographic Association, Pittsburgh 1992
U.Pietsch, H.-J.Merle and H.Metzger "Kinetic Behaviour of a Structural Phase Transition in Langmuir-Blodgett Multilayers Studied by Energy Dispersive X-Ray Reflectivity" 12th General Conference of Condensed Matter Division of EPS, Prag 1992
U.Pietsch (invited) "Static and Dynamical Valence Charge Properties in GaAs" X.Sagamore Conference , Konstanz 1991
U.Pietsch "Depth Selective Real Structure Analysis of Semiconductor Superlattices Using Grazing Incidence X-Ray Diffraction" 2nd International Conference on Surface X-Ray and Neutron Scattering, Bad Honnef 1991
U. Pietsch, J. Reiche and P. Fink: "Structural Refinement of a Langmuir-Blodgett Multilayer Measured by X-Ray Reflectivity" Third European Conference on Organized Organic Thin Film , Mainz 1990
T. Baumbach, H.-G. Brühl, H. Rhan and U. Pietsch : "X-Ray Characterization of Semiconductor Heterostructures by Grazing Incidence Techniques" XII European Crystallographic Meeting, Moskau 1989
U. Pietsch and H.-G. Brühl : "Determination of Lattice Distortions Around the Nitrogen Impurity in GaP" Tenth European Crystallographic Meeting, Wroclaw (VR Polen) 1986
U. Pietsch : "Some Influences on the Thermal Expansion Coefficient of Covalently Bonded Materials" International Summer School on "Defects in Crystals", Szyrk (VR Polen) 1985
U. Pietsch J. Mahlberg and K. Unger : "Investigation of Dynamical Bond Charge Transfer in GaAs Changing X-Ray Reflection Power under High Electric Field" RGW - Tagung "GaAs and Related Compounds" Reinhardsbrunn 1984
U. Pietsch : (Poster) "Hydrostatic Pressure and Uniaxial Stress Dependence of the Silicon (222) X-Ray Reflection" XII Congress of the International Union of Crystallography, Hamburg 1984