期刊
PHYSICAL REVIEW LETTERS
卷 119, 期 18, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.119.187204
关键词
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资金
- ERC [291472]
- German Research Foundation (DFG) [SFB 1143]
- Willner Family Leadership Institute in Weizmann Institute of Science, Israel
- German-Israeli Foundation (GIF) [I-1364-303.7/2016]
- Institute of Physics of the Czech Academy of Sciences
- Max Planck Society through Mac Planck Partner Group programme
- Ruth and Herman Albert Scholars Program for New Scientists
Noncollinear antiferromagnets, such as Mn-3 Sn and Mn-3 Ir, were recently shown to be analogous to ferromagnets in that they have a large anomalous Hall effect. Here we show that these materials are similar to ferromagnets in another aspect: the charge current in these materials is spin polarized. In addition, we show that the same mechanism that leads to the spin-polarized current also leads to a transverse spin current, which has a distinct symmetry and origin from the conventional spin Hall effect. We illustrate the existence of the spin-polarized current and the transverse spin current by performing ab initio microscopic calculations and by analyzing the symmetry. We discuss possible applications of these novel spin currents, such as an antiferromagnetic metallic or tunneling junction.
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