Dokumente Fakultät für Physik (inkl. GAUSS) nach Titel
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Wachstum amorpher Schichten: Vergleich von Experiment und Simulation im Bereich Oberflächenrauhigkeit und mechanische Spannungen
(2001-07-04)Structure formation and mechanical stresses of amorphous and polycrystal films, prepared by evaporation, sputtering and PLD, are investigated, and modelled with the help of Monte-Carlo ... -
Wachstum metallischer Nanoclustern auf Polymeroberflächen
(2005-04-22)Growth and properties of metallic nanoclusters on polymer surfaces lead to interesting physical questions. At the same time clusters on polymers have a high potential with regard to technical ... -
Wachstum und Grenzflächenbeschaffenheit oxidischer Ausscheidungen in Silber
(2003-12-02)The chemical composition of metal/oxide (M/O)- interfaces was studied for an internally oxidized Ag1at.%Mg- and Ag1at.%Mn- alloy with MgO- and Mn3O4- nanoprecipitates in a dilute Ag matrix, ... -
Wachstumsanalyse amorpher dicker Schichten und Schichtsysteme
(2004-07-14)Based on a stochastic partial differential equation, surface morphology evolution of growing amorphous thin films can be described. For enhancement and verification of the applicability to ... -
Wasserstoffabsorption in epitaktischen Niobschichten: eine STM-Studie
(2007-02-19)In this work the phase transition of the system Niobium Hydrogen in thin films was investigated. The epitaxial Niobium films were fabricated using ion sputtering on sapphire substrates. The ... -
Wave optical simulations for x-ray nano-focusing optics
(2012-02-22)Curved x-ray multilayer mirrors focus synchrotron beams down to tens of nano metres. A wave-optical theory describing propagation of two waves in an elliptically curved focusing multilayer ... -
Wechselwirkungen von Gold und Versetzungen in Silizium
(2009-06-04)The knowledge about interactions of different defects in crystalline sillicon are of major importance for the optimisation of the performance of solar cells based on multicrystalline silicon. ... -
Wetting dynamics on soft surfaces
(2023-03-01)Dynamic wetting of a liquid deposited on a soft solid is very common in many biological, medical, and industrial processes. Thus, understanding the interaction between a moving liquid drop and a soft surface remains crucial, ... -
White-Light Mass Determination and Geometrical Modelling of Coronal Mass Ejections
(2019-01-21)Coronal Mass Ejections (CMEs) are explosive large-scale outbursts of the Sun’s coronal plasma and magnetic field. They can induce strong geomagnetic storms at Earth, which pose serious threats to space systems, communications ... -
X-ray Diagnostics of Accretion Plasmas in Selected Soft Polars
(2009-09-10)Accretion processes occur during diverse stages of stellar evolution and on diverse scales, as for example in star formation, in active galactic nuclei, or in close binaries with a compact ... -
X-ray magnetic circular dichroism in iron/rare-earth multilayers and the impact of modifications of the rare earth's electronic structure
(2001-02-22)This work illuminates the possibilities of circular magnetic dichroism in X-ray absorption (XMCD) for the studies of ordered magnetism. The element and electron-shell sensitivity of this ... -
X-Ray Micro- and Nano-Diffraction Imaging on Human Mesenchymal Stem Cells and Differentiated Cells
(2017-06-13)Recent advances in hard x-ray optics, instrumentation and detection have made it possible to probe biological samples by combining diffraction with raster scanning, using step sizes on the order of cellular organelle ... -
X-Ray Near-Field Holography: Beyond Idealized Assumptions of the Probe
(2017-11-08)All images are flawed, no matter how good your lenses, mirrors etc. are. Especially in the hard X-ray regime it is challenging to manufacture high quality optics due to the weak interaction of multi-keV photons with matter. ... -
X-ray waveguide optics: Beyond straight channels
(2017-04-28)Modern x-ray sources and analysis techniques such as lens less imaging combined with phase retrieval algorithms allow for resolving structure sizes in the nanometerrange. For this purpose optics have to be employed, ... -
X-ray waveguides and waveguide-based lensless imaging
(2006-06-06)The scope of the present thesis is X-ray waveguides and applications in waveguide-based lensless X-ray microscopy. The propagation of X-rays in waveguides is analysed analytically for some ... -
Z →ττ Cross Section Measurement and ττ Mass Reconstruction with the ATLAS Detector at the LHC
(2012-11-14)In this dissertation, the Z to tautau decay where one τ decays leptonically and the other one hadronically is presented. The process is studied with data collected from the ATLAS experiment in pp collisions at c-m-s = 7 TeV ... -
Zeeman tomography of magnetic white dwarfs
(2006-10-12)The aim of this work has been to develop a method that allows to derive the distribution of the surface magnetic fields of magnetic white dwarfs from a set of rotation-phase resolved flux ... -
Zeitlich modulierte Statistik der periodisch gestörten turbulenten Kanalströmung
(2002-03-25)The turbulent channel flow is subjected to a temporal change of the boundary conditions, either by periodic variation of a longitudinal wall speed or, alternatively, by periodic variation ... -
Zum Einfluss der elastischen Verzerrungsenergie auf die Frühstadien der Entmischung von Cu2at.%Co
(2005-10-07)In the present work the decomposition in the Cu2at.%Co system was characterized at 703K, 763K und 853K by means of Field Ion Microscopy (FIM), Tomographic Atom Probe (TAP) and Field Ion ...