Dokumente Fakultät für Physik (inkl. GAUSS) nach Titel
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<i>C</i><sub>60</sub> as a template for the creation of metal and semiconductor nanoclusters
(2006-01-24)Due to their spherical shape, thin films made up of C60 fullerene molecules have a highly corrugated surface. This provides a large number of natural defects, which could provide nucleation ... -
Identifizierung eines Flattermechanismus an einem superkritischen Profil unter laminarer Strömung
(2021-06-18)The transonic flow around elastic bodies can lead to complex, nonlinear aeroelastic interactions. So far, hardly any aeroelastic systems have been investigated in which the laminar-turbulent boundary layer transition ... -
Imaginary-Time Approach to the Kondo Effect out of Equilibrium
(2012-07-10)An artificial quantum dot which is attached to two leads exhibits a non-equilibrium Kondo effect due to the presence of a finite source-drain voltage. The construction of a theory which provides numerically computable ... -
Imaging vortex pinning and gyration by time-resolved and in-situ Lorentz microscopy
(2023-03-08)Magnetism encompasses a large variety of scientifically interesting and industrially valuable phenomena. In particular, nanoscopic magnetic textures—such as vortices, merons and skyrmions—have been in the spotlight of ... -
Impact of Complex Network Topology on Synchronization Dynamics
(2012-12-20)Synchrony is one of the most common dynamical states emerging on networks. The speed of convergence towards synchrony provides a fundamental collective time scale for synchronizing systems. Here we study the asymptotic ... -
Impact of compositional gradients on the dynamics of solid-liquid-vapor contact lines
(2022-03-28)The motion of a liquid over a solid surface is a process that happens in natural phenomena and everyday life situations, therefore its understanding is of great importance. The motion of the liquid is limited by the dynamics ... -
Implementation and quantification of scanning transmission EBIC experiments for measuring nanometer diffusion lengths in manganite-titanite p-n heterojunctions
(2019-01-08)The scanning transmission electron beam induced current (STEBIC) approach to measure charge carrier diffusion lengths in the nanometer range in 3rd generation photovoltaics devices is presented, evaluated and applied to ... -
Improving Monte Carlo simulations in high energy physics using machine learning techniques
(2023-09-15)Monte Carlo event generators are nowadays indispensable tools for predictions based on first principles in high energy physics, and they represent one of the mainstays of particle physics research at the Large Hadron ... -
Impurity-induced resonant Raman scattering in GaAs below the band gap at low temperature
(2001-11-07)Acceptor-induced resonance Raman scattering (RRS) below the band gap in lightly doped p-type GaAs is investigated at 2 K. The Raman scattering intensities are measured and analyzed. Both impurity-induced one-phonon Raman ... -
In situ studies on palladium/rutile titanium dioxide exposed to low pressure hydrogen gas environments
(2018-11-12)The interaction of hydrogen gas with the palladium/rutile titanium dioxide model system was investigated with strong focus on the interface and its vicinity. Palladium (Pd) films were deposited on pretreated rutile titanium ... -
In Situ X-ray Spectroscopy and Environmental TEM Study on Manganite Water Oxidation Catalysts
(2017-11-29)This thesis presents in situ studies on the active states of manganite water oxidation catalysts in water vapor. The study in chapter 2 probes the surface electronics of the strongly correlated Pr1-xCaxMnO3 (0In-situ Bruchversuche an amorph/kristallinen Multilagen im Transmissionselektronenmikroskop
(2015-11-26)In this thesis, in-situ fracture tests on amorphous/crystalline multilayers with layer thicknesses of less than 100 nm have been performed inside a transmission electron microscope. In this experiments, the layer thickness ...In-situ Deinterkalation von Lithiummanganoxid mittels Atomsondentomographie
(2017-12-05)The interest in understanding the underlying mechanisms of energy conversion in lithium ion batteries leads to increasing activities in three dimensional characterizing of battery materials with atom probe tomography with ...In-Situ Environmental TEM Studies of Electro- and Photo-Electrochemical Systems for Water Splitting
(2021-02-22)This thesis presents studies on the structure and stability of materials for electrochemical water splitting and the changes in the active state. The stability of a TiO2 protection layer on a silicon multi-junction is ...In-situ Environmental Transmission Electron Microscopy Investigation of Perovskite Oxide Thin Films During Electrochemical Oxygen Evolution Reaction.
(2022-07-21)Despite many theoretical and experimental efforts to find active catalysts in oxygen evolution reaction (OER), the mechanism for high activity and long-term OER stability remains elusive. Catalyst-electrolyte interface ...In-situ lithiation of lithium manganese oxide in a transmission electron microscope
(2023-03-15)This thesis presents in-situ studies of the lithiation of lithium manganese oxide in a transmission electron microscope. It focuses on the phase transitions from spinel to tetragonal phase and the role of defects on ...In-situ Zugversuche an einkristallinen Gold-Nanodrähten im TEM
(2012-11-29)The investigation of size dependent mechanical properties of different materials was of great interest for physicists over the past decades. Whereas the deformation of bulk materials is nearly completely understood and the ...Indirect Imaging of Cataclysmic Variable Stars
(2002-07-02)Cataclysmic variable stars (CVs) are compact binaries consisting of a white dwarf, a late main-sequence star and an accretion structure. Due to their distance, their apparent sizes are too ...Inertial modes, turbulence and magnetic effects in a differentially rotating spherical shell
(2017-11-09)The study of a fluid trapped inside a spherical shell is of fundamental interest in fluid mechanics, having given rise to numerous theoretical and experimental studies. This is also a geometric feature shared by geo- ...InN and In-rich InGaN Nanocolumns by Molecular Beam Epitaxy
(2012-02-01)The focus of this thesis is on InN and InGaN semiconductor-nanowires. The aim is to gain a deeper understanding of the electronic properties of InN nanowires and the growth mechanisms of ...