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arXiv · 1606.03088

Magnon spin Nernst effect in antiferromagnets

Vladimir A. Zyuzin·Alexey A. Kovalev
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Abstract

We predict that a temperature gradient can induce a magnon-mediated spin Hall response in an antiferromagnet with non-trivial magnon Berry curvature. We develop a linear response theory which gives a general condition for a Hall current to be well defined, even when the thermal Hall response is forbidden by symmetry. We apply our theory to a honeycomb lattice antiferromagnet and discuss a role of magnon edge states in a finite geometry.

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Vladimir A. Zyuzin, Alexey A. Kovalev. 2016-11-15. Magnon spin Nernst effect in antiferromagnets. https://doi.org/10.1103/physrevlett.117.217203

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