Magnon Spin Nernst Effect in Antiferromagnets

2016/06/30 by Vladimir A. Zyuzin, Alexey A. Kovalev
Physics and Astronomy · #Antiferromagnetism #Berry connection and curvature #Condensed matter physics #Ferromagnetism #Hall effect #Lattice (music) #Magnetic field #Magnetic properties of thin films #Magnon #Nernst effect #Nernst equation #Physics #Physics of Superconductivity and Magnetism #Quantum mechanics #Spin Hall effect #Spin polarization #Spin wave #Thermal Hall effect #Topological Materials and Phenomena #cond-mat.mes-hall

paper · pdf · doi:10.1103/physrevlett.117.217203

published as Phys. Rev. Lett. 117, 217203 (2016) · 17 pages

arxiv created 2016/11/15 · openalex publication_date 2016/11/15 · arxiv updated 2016/11/16 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/06

Abstract

We predict that a temperature gradient can induce a magnon-mediated spin Hall response in an antiferromagnet with nontrivial 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.

Citations

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