Energy Storage in Spin System via Vortices

ORAL

Abstract

We formulate an energy-storage concept based on the topological spin textures in magnetic insulators. These textures, such as vortices, are metastable states associated with free energy. Here we propose to store energy in the topological texture of an XY ferromagnetic or antiferromagnetic annulus with easy plane anisotropy. Injecting vortices into the system will establish a net winding texture (energy density) within the bulk as vortices pass through the magnetic system. Once we complete the charging process, we can turn off the vortex conductivity and thus the energy associated with the winding texture is stored.

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Presenters

  • Dalton Jones

    • University of California, Los Angeles

Authors

  • Dalton Jones

    • University of California, Los Angeles

  • Ji Zou

    • University of California, Los Angeles

  • Yaroslav Tserkovnyak

    • Physics and Astronomy, University of California, Los Angeles
    • University of California, Los Angeles
    • Physics, University of California, Los Angeles
    • Physics & Astronomy, University of California, Los Angeles