Regensburg 2016 – wissenschaftliches Programm

Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe

TT: Fachverband Tiefe Temperaturen

TT 58: Transport: Poster Session

TT 58.8: Poster

Mittwoch, 9. März 2016, 15:00–18:30, Poster D

Spin-charge coupled dynamics induced by a nonequlibrium magnetization — •Sebastian Tölle¹, Cosimo Gorini², and Ulrich Eckern¹ — ¹Institute of Physics, University of Augsburg, 86135 Augsburg, Germany — ²Faculty of Physics, University of Regensburg, 93040 Regensburg, Germany

We discuss spin-charge coupled dynamics in a thin metallic film modelled as a two-dimensional electron gas. A proximity-induced dynamical magnetic texture, from a ferromagnet in contact with the normal metal, gives rise to an effective driving force acting on the conduction electrons. Due to the inversion asymmetry of the ferromagnet/normal metal/vacuum structure, we consider an effective Bychkov-Rashba spin-orbit interaction. We show that the latter, together with anisotropic Elliott-Yafet spin relaxation, yields important corrections to the dynamical magnetization-induced effective force. We analyze in particular the spin-pumping configuration of typical experimental setups. A non-trivial competition between the inverse spin Hall and the spin galvanic (inverse Edelstein) effects, both contributing to the build-up of a DC voltage in the sample, is found.