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Konopinski Physics Colloquia IUB

Department of Physics

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Title: Mohit Randeira, The Ohio State University, "Topological Spin Textures in Magnets"
Sharing: Public
Start Time: Friday March 31, 2017 04:00 PM
End Time: Friday March 31, 2017 05:00 PM
Location: The Joseph and Sophia Konopinski Colloquium Series, Swain West 119
Free/Busy: busy
Description:

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 various condensed matter systems, particularly in the form of topological spin textures in magnetic materials.

I will begin with a pedagogical introduction to skyrmions and explain how these spin textures arise in magnets with broken inversion symmetry. I will then describe their unusual properties and potential for applications. I will conclude with some of our recent theoretical predictions [1,2,3] on how the stability of skyrmion phases can be greatly enhanced by tuning the spin-orbit coupling and magnetic anisotropy.

 

[1] S. Banerjee, O. Erten and M. Randeria, Nature Physics 9, 626 (2013)

[2] S. Banerjee, J. Rowland, O. Erten and M. Randeria, Phys. Rev. X 4, 031045 (2014)

[3] J. Rowland, S. Banerjee and M. Randeria, Phys. Rev. B 93, 020404(R) (2016)

Cost: FREE
Contact Email: anfoley@indiana.edu
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