Münchner Physik Kolloquium: Spin transfer and spin pumping

by Rembert Duine (Universität Utrecht)

Monday 14 Jan 2008, 17:15 → 18:30 Europe/Berlin

TUM, PH HS 2, Garching

Controlled manipulation of the magnetization direction of nanomagnets is very attractive for applications to high-denisty information storage. This has, in part, motivated the recent theoretical and experimental work on spin transfer as spin transfer torques provide a way to manipulate the magnetization direction of metallic ferromagnets directly with spin currents. The main examples are current-driven magnetization reversal in spin valves, and current-induced motion of magnetic domain walls. Spin pumping is the opposite of spin transfer, namely the generation of spin currents by a time-dependent magnetization. In this talk I will review recent theoretical and experimental work on spin transfer and spin pumping, focusing on magnetic domain walls.