Dokumente Fakultät für Physik (inkl. GAUSS) nach Gutachter "Krebs, Hans-Ulrich Prof. Dr."
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Position-controlled selective area growth of Ga-polar GaN nanocolumns by molecular beam epitaxy
(2013-12-19)This thesis focuses on the position-controlled selective area growth of Ga-polar GaN nanocolumns by molecular beam epitaxy. Part I of this thesis reviews the theoretical background which is considered to be vital for the ... -
Rauhigkeit und Durchmischung der Grenzflächen in laserdeponierten Cu-Ag- und Fe-Ag-Schichtsystemen
(2002-11-21)Due to the high kinetic energy of the ions that are produced during pulsed laser deposition, thin films prepared by this method show a number of marked differences when compared to films ... -
Relaxationen in komplexen Fluiden
(2010-12-20)Relaxation processes of complex fluids show a significant aspect for understanding of metallic glasses as well as polymers. Therefore, the interpretation of the macroscopic features due to ... -
Scanning Tunnelling Microscopy of Co-impurified Noble Metal Surfaces: Kondo-Effect, Electronic Surface States and Diffusive Atom Transport
(2004-11-12)The scanning tunnelling microscope (STM) was used to investigate the properties of nanoscale structures on (111)-oriented Ag and Cu films. The special focus is on their electronic states ... -
Selbstorganisation magnetischer Nanopartikel auf facettierten Saphir-Substraten
(2005-06-14)Self-organisation has been used in this work in many various ways. On the one hand a self-assembling process lead to a transformation of the plane surface of the m-plane Al2O3-substrate ... -
Spannungsinduzierte Wellenbildung in laserdeponierten Polymer/Metall-Systemen
(2014-07-24)Multilayer thin films with dimensions at the nanometer scale represent a technologically important class of materials where the interface and size effects play an important role. Interestingly, when polymer/metal multilayers ... -
Thermodynamic and kinetic properties of metallic glasses during ultrafast heating
(2015-05-18)When a system is cooled from the high temperature liquid state below its liquidus temperature, the dynamics of the system start to deviate from the ones in the equilibrium high temperature liquid. There are a number of ... -
Untersuchung der elektrischen Hyperfeinwechselwirkung in M<sub>n+1</sub>AX<sub>n</sub>-Phasen mittels der gestörten γ-γ-Winkelkorrelation
(2014-05-19)Mn+1AXn phases are thermodynamically stable nanolaminated ternary carbides and nitrides showing both metallic and ceramic properties. The letter M stands for an early transition metal, the letter A represents an A-element ... -
Untersuchungen zur Polymerdynamik an laserdeponierten Poly(alkyl methacrylat)-Filmen
(2010-04-06)Pulsed Laser Deposition is an extremely versatile method for preparation of thin films of a wide range of material classes. The associated ablation mechanisms are very complex - especially ... -
Ein Verfahren zur Herstellung zweidimensionaler Röntgenwellenleiter
(2013-07-15)As X-ray beams only weakly interact with matter, conventional refracting optics are not suitable for the use in this energy range. Instead, different approaches replace conventional optics in the X-ray regime, one of them ... -
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 ...