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arXiv · 1710.02115

Spin Hall and Nernst effects of Weyl magnons

Vladimir A. Zyuzin·Alexey A. Kovalev
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Abstract

In this paper, we present a simple model of a three-dimensional insulating magnetic structure which represents a magnonic analog of the layered electronic system described in [Phys. Rev. Lett. {\bf 107}, 127205 (2011)]. In particular, our model realizes Weyl magnons as well as surface states with a Dirac spectrum. In this model, the Dzyaloshinskii-Moriya interaction is responsible for the separation of opposite Weyl points in momentum space. We calculate the intrinsic (due to the Berry curvature) transport properties of Weyl and so-called anomalous Hall effect (AHE) magnons. The results are compared with fermionic analogs.

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Vladimir A. Zyuzin, Alexey A. Kovalev. 2018-06-08. Spin Hall and Nernst effects of Weyl magnons. https://doi.org/10.1103/physrevb.97.174407

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