Bachelor Theses

In this work, the synthesis of ferroelectric PbZrTiO (PZT) thin films by chemical solution deposition (CSD) and their investigation by atomic pair distribution function (PDF), which is a total X-ray scattering method, are described. The PZT thin films are fabricated at different temperatures to analyse temperature-induced phase transitions. [...]

The amorphous material compound AlYB14 exhibits interesting properties due to anicosahedral B network but lacks oxidation resistance at high temperatures, as Boxide forms corrosive boric acid. Therefore, it was attempted to improve the stabilitywith a higher Al content up an Al/Y ratio of 2.4, as it is know to form a protective Aloxide layer preventing further oxidation. [...]

This bachelor thesis aims to develop and optimize a method to analyse the energyof electron bunches accelerated by a laser-plasma wakefield accelerator (LPWA).An electron spectrometer is used, which consists of a magnet do disperse electronsof different energies, and a luminescence screen, on which the electrons are madevisible. Due to the high energy spread of electrons accelerated by a LPWA, awide screen is used, which can only be observed by using a fisheye lens. [...]

The search for physics beyond the standard model of particle physics that canexplain the unsolved mysteries of the universe, such as the matter-antimatter asymmetry,is of high importance in todays research. The interaction of quarks with theHiggs boson is a candidate for such physics, possibly resulting in a new source ofCP-violation. [...]