by
Yoshinori Tokura(RIKEN Center for Emergent Matter Science (CEMS) and Department of Applied Physics, University of Tokyo)
→
Europe/Stockholm
Oskar Klein Auditorium [note new time and venue]
Oskar Klein Auditorium [note new time and venue]
Description
Topology of spin texture in a solid is a source of emergent electromagnetic properties and functions. Under strong spin-charge coupling as well as relativistic spin-orbit coupling, topological spin textures give birth to exotic phenomena, such as colossal magnetoresistance, multiferroicity (magnetic ferroelectricity), skyrmions, topological insulator/semimetal, quantized-anomalous/topological Hall effects, etc. In particular, non-collinear and/or non-coplanar spin textures may generate the fictitious (emergent) magnetic and electric fields acting on the electrons, thus hosting the enhanced magneto-electric effect and topological Hall effects. Emergent electromagnetism in topological magnets and its possible application are presented.
