Spin-related thermoelectric conversion in lateral spin-valve devices with single-crystalline Co2FeSi electrodes
Spin-related thermoelectric conversion in lateral spin-valve devices with single-crystalline Co2FeSi electrodes
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DOI：
10.7567/apex.8.043003
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发表时间：
2015-03
影响因子：
2.3
通讯作者：
K. Yamasaki;S. Oki;S. Yamada;T. Kanashima;K. Hamaya
中科院分区：
文献类型：
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作者：
K. Yamasaki;S. Oki;S. Yamada;T. Kanashima;K. Hamaya
我们演示了具有单晶 Co2FeSi (CFS) 电极的铜基横向自旋阀 (LSV) 中热流和自旋流之间的转换。我们可以观察到由自旋相关的塞贝克效应引起的从 CFS 到 Cu 的热诱导自旋注入，并且即使在 LSV 结构中也可以检测到自旋相关的珀耳帖效应产生的热流。这项研究是了解具有各种电子能带结构的单晶材料中的热自旋转换的重要一步。
We demonstrate the conversion between a heat current and a spin current in Cu-based lateral spin valves (LSVs) with single-crystalline Co2FeSi (CFS) electrodes. We can observe the thermally induced spin injection from CFS into Cu resulting from the spin-dependent Seebeck effect, and the heat current generated by the spin-dependent Peltier effect can be detected even in the LSV structures. This study is an important step toward understanding heat-spin conversion in single-crystalline materials with various electronic band structures.