Department of Physics and Astronomy: Publications and Other Research
Date of this Version
11-18-2016
Citation
Phys. Rev. Lett. 117, 217203 (2016)
DOI: 10.1103/PhysRevLett.117.217203
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.
Comments
© 2016 American Physical Society. Used by permission.