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arXiv · 1711.03135

Charge pumping induced by magnetic texture dynamics in Weyl semimetals

Yasufumi Araki·Kentaro Nomura
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Abstract

Spin-momentum locking in Weyl semimetals correlates the orbital motion of electrons with background magnetic textures. We show here that the dynamics of a magnetic texture in a magnetic Weyl semimetal induces a pumped electric current that is free from Joule heating. This pumped current can be regarded as a Hall current induced by axial electromagnetic fields equivalent to the magnetic texture. Taking a magnetic domain wall as a test case, we demonstrate that a moving domain wall generates a pumping current corresponding to the localized charge.

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Yasufumi Araki, Kentaro Nomura. 2017-11-08. Charge pumping induced by magnetic texture dynamics in Weyl semimetals. https://doi.org/10.1103/physrevapplied.10.014007

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