@article{ZhuangSchellingStangletal.2000, author = {Zhuang, Y. and Schelling, Christoph and Stangl, Jochen and Penn, C. and Senz, S. and Sch{\"a}ffler, Friedrich and Roche, T. and Daniel, A. and Grenzer, J{\"o}rg and Pietsch, Ullrich and Bauer, G{\"u}nther}, title = {Structural and optical properties of Si/Si{1-x}Ge{x} wires}, year = {2000}, language = {en} } @article{ZhuangPietschStangletal.2000, author = {Zhuang, Y. and Pietsch, Ullrich and Stangl, Jochen and Hol{\´y}, Vaclav and Darowski, Nora and Grenzer, J{\"o}rg and Zerlauth, S. and Sch{\"a}ffler, F. and Bauer, G{\"u}nther}, title = {In-plane strain and shape analysis of Si/SiGe nanostructures by grazing incidence diffraction}, year = {2000}, language = {en} } @article{ZeimerBuggeGramlichetal.2000, author = {Zeimer, Ute and Bugge, F. and Gramlich, S. and Smirnitzki, V. and Weyers, Markus and Tr{\"a}nkle, G. and Grenzer, J{\"o}rg and Pietsch, Ullrich and Cassabois, G. and Emiliani, V. and Lienau, C.}, title = {Evidence for strain-induced lateral carrier confinement in InGaAs quantum wells by low-temperature near-field spectroscopy}, year = {2000}, language = {en} } @article{ThuenemannKubowiczPietsch2000, author = {Th{\"u}nemann, Andreas F. and Kubowicz, Stephan and Pietsch, Ullrich}, title = {Ultra-thin solid polyelectrolyte-surfactant complex films : structure and wetting}, year = {2000}, language = {en} } @article{StahnGeueGrenzeretal.2000, author = {Stahn, Jochen and Geue, Thomas and Grenzer, J{\"o}rg and Pietsch, Ullrich}, title = {Interaction of short-chain alkanes with surface and interfaces of multilayer films built from amphiphilic molecules: an in-situ X-ray and neutron scattering probe}, year = {2000}, language = {en} } @article{PietschRochonNatansohn2000, author = {Pietsch, Ullrich and Rochon, Paul and Natansohn, Almeria}, title = {Formation of a buried lateral density grating in azopenzene polymer films}, year = {2000}, language = {en} } @article{PietschDarowskiUlyanenkovetal.2000, author = {Pietsch, Ullrich and Darowski, Nora and Ulyanenkov, A. and Grenzer, J{\"o}rg and Wang, K. H. and Forchel, Alfred}, title = {Analysis of the strain distribution in lateral nanostructures for interpreting photoluminescence data}, year = {2000}, language = {en} } @article{Pietsch2000, author = {Pietsch, Ullrich}, title = {Investigations of semiconductor surfaces and interfaces by X-ray grazing incidence diffraction}, issn = {0011-3891}, year = {2000}, language = {en} } @article{NeumannBuchsteinerMahleretal.2000, author = {Neumann, Werner and Buchsteiner, Alexandra and Mahler, Willy and Geue, Thomas and Pietsch, Ullrich}, title = {Dielectric loss spectroscopy at fatty acid salt multilayers}, year = {2000}, abstract = {Dielectric loss spectroscopy (DLS) was performed at compact samples and lamellary organized Langmuir-Blodgett (LB) films from various fatty acid salts. Previous thermoanalytical measurements at compact samples revealed the appearance of two different phase transition temperatures; the lower one is related to the acid the second one to the acid salt molecules. In spite of ill defined electrical contacts with the film the characteristic DLS frequencies obtained from about 100nm thick multilayer films are similar to those recorded from bulk samples. No significant variations of frequencies were found changing the counter ions. Besides conductivity influence at low frequncies we found two relaxations related to the mobility of the dipolar carboxylat-metal group at about 100 and 10000Hz. One of these frequencies is related to the rotation around the chain axis. The strength of this relaxation increases significantly with increasing the sample temperature above 105°C. This temperature is connected with a structural phase transition observed by X-ray reflectometry. In case of Pb-stearate the results of the dielectric measurements help to interprete this structural change as a transition from an orthorhombic into a free-rotator phase. The uncorrelated rotation of molecules around their molecular axes initiates a much increased relaxation strength at the carboxylat-metal sites.}, language = {en} } @article{MukherjeeBhattacharyaSanyaletal.2000, author = {Mukherjee, M. and Bhattacharya, M. K. and Sanyal, M. K. and Geue, Thomas and Grenzer, J{\"o}rg and Pietsch, Ullrich}, title = {Temperature dependent thickness and surface tension of polymer films}, isbn = {81-7371295-6}, year = {2000}, language = {en} } @article{KarcenkoEnglischGrenzeretal.2000, author = {Karcenko, Anatolij V. and Englisch, Uwe and Grenzer, J{\"o}rg and Geue, Thomas and Pietsch, Ullrich and Siebrecht, R.}, title = {Investigation of partially deuterated multilayers by means of X-ray and polarized neutron reflectometry}, issn = {1044-8632}, year = {2000}, language = {en} } @article{GrenzerDarowskiPietschetal.2000, author = {Grenzer, J{\"o}rg and Darowski, Nora and Pietsch, Ullrich and Daniel, A. and Reithmaier, Johann-Peter and Rennon, Siegfried and Forchel, Alfred}, title = {Grazing-incidence diffraction strain analysis of a laterally-modulated multiquantum well system produced by focused-ion-beam implantation}, year = {2000}, language = {en} }