Anomalous Hall effect driven by dipolar spin waves in uniform ferromagnets
Anomalous Hall effect driven by dipolar spin waves in uniform ferromagnets
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DOI：
10.1103/physrevb.92.140408
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发表时间：
2015-09
影响因子：
3.7
通讯作者：
Kei Yamamoto;Koji Sato;E. Saitoh;H. Kohno
中科院分区：
文献类型：
--
作者：
Kei Yamamoto;Koji Sato;E. Saitoh;H. Kohno
反常霍尔效应是由传导电子与铁磁体中偶极自旋波的交换相互作用产生的。即使在没有相对论自旋轨道耦合的均质铁磁体中，这种效应也存在。对霍尔电导率的主要贡献与动态自旋纹理的手性自旋相关性成正比，并且可以根据偶极磁振子的斜散射进行物理理解。
An anomalous Hall effect is shown to arise from the exchange interaction of conduction electrons with dipolar spin waves in ferromagnets. This effect exists even in homogeneous ferromagnets without relativistic spin-orbit coupling. The leading contribution to the Hall conductivity is proportional to the chiral spin correlation of dynamical spin textures and is physically understood in terms of the skew scattering by dipolar magnons.