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Physics Colloquium: Topological Spin Textures in Magnets
Add to Calendar 2020-01-16T20:45:00 2020-01-16T21:45:00 UTC Physics Colloquium: Topological Spin Textures in Magnets

Physics Colloquium

Osmond Lab (117)
Start DateThu, Jan 16, 2020
3:45 PM
to
End DateThu, Jan 16, 2020
4:45 PM
Presented By
Professor Mohit Randeria, Ohio State University

Physics Colloquium

Skyrmions are topological solitons that were first discussed in quantum field theory in the 1960’s. In recent years, through a series of beautiful experimental developments, they have become of great relevance to condensed matter systems, especially chiral magnetic materials.

 

I will begin with a pedagogical introduction to skyrmions and explain how these spin textures arise in magnets with broken inversion symmetry and spin-orbit coupling. I will then describe a variety of experiments that probe magnetic skyrmions, emphasizing their unusual properties and potential for applications in magnetic memories. I will conclude with some of our recent theoretical work on the stability of skyrmions in chiral magnets.