期刊
APPLIED PHYSICS LETTERS
卷 120, 期 9, 页码 -出版社
AIP Publishing
DOI: 10.1063/5.0084359
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资金
- Air Force Office of Scientific Research [FA9550-19-1-0307]
Recent progress in the study of magnon spin Nernst effect in collinear antiferromagnets has revealed profound topological features and inspired the exploration of topological magnons.
Magnon excitations in antiferromagnetic materials and their physical implications have helped to facilitate the emergence of device concepts not presently available in ferromagnets. A unique characteristic of antiferromagnetic magnons is the coexistence of opposite spin polarization, which mimics the electron spin in a variety of transport phenomena. Among them, the most prominent spin-contrasting phenomenon is the magnon spin Nernst effect (SNE), which refers to the generation of a transverse pure magnon spin current through a longitudinal temperature gradient. We introduce selected recent progress in the study of magnon SNE in collinear antiferromagnets with focus on its underlying physical mechanism entailing profound topological features of magnon band structures. By reviewing how the magnon SNE has inspired and enriched the exploration of topological magnons, we offer our perspective on this emerging frontier that holds potential in future spintronic nano-technology. Published under an exclusive license by AIP Publishing
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