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PGI-1 Seminar: Dr. Philipp Rybakov

Hopfions. Do we have a chance to find them in magnets?

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13 Feb 2015 14:00
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PGI Lecture Hall

Institute of Metal Physics (RAS), Ekaterinburg, Russia

Abstract:

This talk is related to the theory of tree-dimensional topological solitons. We start with a short introduction to the theory of hopfions in frame of Skyrm-Faddeev model. Then we present new sigma model based on generalized approach in description of magnetic exchange interaction. In frame of this sigma model we got a chance to give an answer to the question related to the possibility to find solutions with nonzero Hopf index in magnets.

Contact

Prof. Dr. Stefan Blügel
Phone: +49 2461 61-4249
Fax: +49 2461 61-2850
email: s.bluegel@fz-juelich.de

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