Microscopic theory of spin-splittings and ballistic spin currents in semiconductor nanostructures

• Antragsteller: Professor Dr. Peter Vogl
• Fachliche Zuordnung: Theoretische Physik der kondensierten Materie
• Förderung: Förderung von 2007 bis 2013
• Projektkennung: Deutsche Forschungsgemeinschaft (DFG) - Projektnummer 41099562

This project aims at quantitatively predicting the spin-orbit-interaction induced intrinsic spin-Hall effect, spin-orbit induced magnetizations, spin precession times, g-factors, and spin-polarized electron currents as well as the quantum spin-Hall effect in nanostructured two-dimensional electron or hole gases with and without the presence of magnetic fields. The calculations will be based on a novel spin-resolved quantum transport theory, the multi scattering Buettiker probe (MSB) model, that we have recently developed. It treats quantum interference and coherence on the same footing as incoherent scattering and allows one to incorporate inhomogeneous magnetic fields in a non-perturbative manner. The main methodical objective will consist in extending this method to consistently treat many electronic bands as necessary for topological insulators. The underlying electronic structure scheme is the atomistic relativistic empirical tight-binding method.

• DFG-Verfahren: Schwerpunktprogramme
• Teilprojekt zu: SPP 1285: Halbleiter-Spintronik