Berlin 2012 – wissenschaftliches Programm

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MA: Fachverband Magnetismus

MA 30: Focus Session "Spin Currents in Magnetic Nanostructures", Organization: Mathias Kläui (Univ. Mainz)

MA 30.1: Hauptvortrag

Mittwoch, 28. März 2012, 15:00–15:30, EB 301

Spin transfer in conducting and insulating magnetic systems — •Yaroslav Tserkovnyak — University of California, Los Angeles

I will review recent developments in the theory of current-induced magnetization dynamics and reciprocal pumping phenomena. Following early realization of the importance of these effects in layered magnetic structures, much attention has been recently paid to continuous ferromagnetic systems with strong magnetic textures (such as domain walls, vortices, skyrmion lattices etc.) as well as magnetic phases with antiferromagnetic or other magnetic order. Magneto-thermoelectric phenomena have furthermore generated a flurry of experimental and theoretical activities, and the field has branched out to encompass new materials, both conducting and (trivially or topologically) insulating. Despite the apparent diversity of underlying magnetic orderings, materials, phases, and nanoscale configurations, it turns out there are very simple guiding principles that allow one to streamline phenomenological and microscopic understanding, put forward insightful experimental predictions, and propose applications, as will be discussed in this talk.