期刊
PHYSICAL REVIEW LETTERS
卷 112, 期 1, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.112.017205
关键词
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资金
- Welch Foundation [TBF1473]
- National Science Foundation [DMR-1122603]
- US Department of Energy Division of Materials Sciences and Engineering [DE-FG03-02ER45958]
As established in the very early work of Edwin Hall, ferromagnetic conductors have an anomalous Hall conductivity contribution that cannot be attributed to Lorentz forces and therefore survives in the absence of a magnetic field. These anomalous Hall conductivities are normally assumed to be proportional to magnetization. We use symmetry arguments and first-principles electronic structure calculations to counter this assumption and to predict that Mn3Ir, a high-temperature antiferromagnet that is commonly employed in spin-valve devices, has a large anomalous Hall conductivity.
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