Intrinsic spin Nernst effect of magnons in a noncollinear antiferromagnet
Journal Article
·
· Physical Review Research
We investigate the intrinsic magnon spin current in a noncollinear antiferromagnetic insulator. We introduce a definition of the magnon spin current in a noncollinear antiferromagnet and find that it is in general nonconserved, but for certain symmetries and spin polarizations the averaged effect of nonconserving terms can vanish. We formulate a general linear response theory for magnons in noncollinear antiferromagnets subject to a temperature gradient and analyze the effect of symmetries on the response tensor. We apply this theory to single-layer potassium iron jarosite and predict a measurable spin current response.
- Research Organization:
- Univ. of Nebraska, Lincoln, NE (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Materials Sciences & Engineering Division
- Grant/Contract Number:
- SC0014189
- OSTI ID:
- 1594204
- Alternate ID(s):
- OSTI ID: 1596691
- Journal Information:
- Physical Review Research, Journal Name: Physical Review Research Vol. 2 Journal Issue: 1; ISSN 2643-1564
- Publisher:
- American Physical SocietyCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Magnonic analog of the Edelstein effect in antiferromagnetic insulators
|
journal | January 2020 |
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