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Whirls in magnets: from skyrmions to magnetic monopoles

Date and Time: Wednesday, November 04, 2020, 03:30pm - 04:30pm

Speaker:  Achim Rosch, University of Cologne 

Abstract: Magnetic skyrmions are tiny, topologically quantized magnetic whirls stabilized by spin-orbit interactions. They couple extremely efficiently to charge-, spin- and heat currents and can be manipulated by ultra small forces. They are therefore promising candidates for, e.g., future magnetic memories. The coupling of skyrmions to electrons arises from Berry phases, which can efficiently be described by an artifical electromagnetic field. We investigate how the topology of skyrmion phase can be changed by singular magnetic defects which can be identified as magnetic monopoles of the emergent electromagnetic fields.

Host: Natan Andrei, Piers Coleman


Extra Info: Meeting ID: 977 4752 4523 Password: 817908