Berlin 2018 – scientific programme

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MA: Fachverband Magnetismus

MA 30: Focus Session: Topological Defects in Superconductors and Magnets (joint session TT/MA)

MA 30.1: Invited Talk

Wednesday, March 14, 2018, 15:00–15:30, H 0104

Stability and Emergent Electrodynamics of Skyrmions — •Christian Pfleiderer — Physik-Department, Technische Universität München, D-85748 Garching, Germany

Skyrmions and related topological spin textures in chiral magnets attract great interest as a possible route towards novel spintronics devices. A series of studies is reported on the topological stability of skyrmions in chiral magnets for different temperature versus field histories. The character of magnetic textures, notably as observed in bulk compounds, at surfaces and in thin epitaxial films will be addressed. Further, the response of the different magnetic phases in chiral magnets to electric currents and the associated spin currents across the magnetic phase diagram of selected systems has been measured. Based on the combination of electrical resistivity, Hall effect, planar Hall effect, ac susceptibility and kinetic small angle neutron scattering the interplay of spin transfer torques with defects for the different magnetic phases and phase boundaries will be discussed.