Dresden 2014 – wissenschaftliches Programm

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TT: Fachverband Tiefe Temperaturen

TT 101: Transport - Poster Session

TT 101.9: Poster

Donnerstag, 3. April 2014, 15:00–19:00, P2

Quantum transport and response to electric fields in non-Abelian systems with spin-orbit coupling and magnetic fields — •Klaus Morawetz — Münster University of Applied Sciences, Stegerwaldstrasse 39, 48565 Steinfurt, Germany — International Institute of Physics (IIP) Av. Odilon Gomes de Lima 1722, 59078-400 Natal, Brazil — Max-Planck-Institute for the Physics of Complex Systems, 01187 Dresden, Germany

Electronic transport in spin-polarized systems with impurity and electron-electron interactions as well as spin-dependent meanfields is discussed. The appropriate quantum kinetic equation for SU(2) are derived with special consideration of spin-orbit coupling and magnetic fields. Linearizing, the spin and density dynamical responses to electric fields (polarized light) are calculated and several effects are described: spin-Hall, anomalous Hall and optical Hall effect, spin-heat coupling, extended quasiparticle picture and polarization effect from correlated density. Clarifying the relative importance of meanfield and scattering correlations, new modes due to magnetic fields and spin-orbit coupling are found.
EPL 104 (2013) 2700