凝聚态物理
反铁磁性
霍尔效应
物理
铁磁性
磁化
洛伦兹力
热霍尔效应
磁场
霍尔电导率
对称(几何)
自旋(空气动力学)
量子力学
几何学
数学
热力学
作者
Hua Chen,Qian Niu,Allan H. MacDonald
标识
DOI:10.1103/physrevlett.112.017205
摘要
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 ${\mathrm{Mn}}_{3}\mathrm{Ir}$, a high-temperature antiferromagnet that is commonly employed in spin-valve devices, has a large anomalous Hall conductivity.
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