Anisotropic thermoelectric effect in helimagnetic tunnel junctions
Anisotropic thermoelectric effect in helimagnetic tunnel junctions
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DOI：
10.1063/1.3590269
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发表时间：
2011-05
影响因子：
4
通讯作者：
C. Jia;J. Berakdar
中科院分区：
文献类型：
--
作者：
C. Jia;J. Berakdar
从理论上研究了正常金属/螺旋多铁性/铁磁性异质结的热电输运。我们发现一个各向异性的电荷和自旋热电势与C2 v对称性。的铁磁层的磁化方向的角度依赖性证实了一个唯象理论的基础上的螺旋磁秩序的拓扑结构中的多铁性势垒诱导的有效的自旋-轨道相互作用的对称性。
Thermoelectric transport across normal-metal/helical-multiferroic/ferromagnetic heterojunctions is theoretically investigated. We find an anisotropic charge and spin thermopower with a C2v symmetry. The angular dependence on the magnetization orientation of the ferromagnetic layer is substantiated by a phenomenological theory based on the symmetry of the effective spin-orbit interaction induced by the topology of the spiral magnetic order in the multiferroic barrier.