Interaction and confinement in nanostructures [Elektronische Ressource] : spin-orbit coupling and electron-phonon scattering / vorgelegt von Stefan Debald

Interaction and con nement in nanostructures:Spin-orbit coupling and electron-phonon scatteringDissertationzur Erlangung des Doktorgradesdes Fachbereichs Physikder Universitat¤ Hamburgvorgelegt vonStefan Debaldaus Munster¤Hamburg2005Gutachter der Dissertation: Prof. Dr. B. KramerPD Dr. T. BrandesGutachter der Disputation: Prof. Dr. B. KramerProf. Dr. G. PlateroDatum der Disputation: 01.04.2005Vorsitzender des Prufungsausschusses:¤ PD Dr. S. KettemannV des Promotionsausschusses: Prof. Dr. G. HuberDekan des Fachbereichs Physik: Prof. Dr. G. HuberAbstract iiiAbstractIt is the purpose of this work to study the interplay of interaction and con nementin nanostructures using two examples.In part I, we investigate the effects of spin-orbit interaction in parabolicallycon ned ballistic quantum wires and few-electron quantum dots. In general, spin-orbit interaction couples the spin of a particle to its orbital motion. In nanostruc-tures, the latter can easily be manipulated by means of con ning potentials. Inthe rst part for this work, we answer the question how the spatial con nementin uences spectral and spin properties of electrons in nanostructures with sub-stantial spin-orbit coupling. The latter is assumed to originate from the structureinversion asymmetry at an interface. Thus, the spin-orbit interaction is given bythe Rashba model.