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(Non)-existence of stray field stabilized magnetic skyrmions

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DNMW06 - Recent challenges in the mathematical design of new materials

Magnetic skyrmions are nanoscale, topological solitons observed in thin magnetic films. Due to possible data storage applications, they are of great interest to the physics community. Typically thought of as stabilized by the so-called Dzyaloshinskii-Moriya interaction occurring in extremely thin films, it has been demonstrated that they may also arise due to stray field effects. I will present an appropriate 2D reduction of the micromagnetic energy taking into account the possibility of skyrmions smaller than the film thickness and discuss the ramifications on the question of existence or non-existence of stray-field stabilized skyrmions in that case.

This talk is part of the Isaac Newton Institute Seminar Series series.

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