Observation of inverse spin Hall effect in ferromagnetic FePt alloys using spin Seebeck effect
Observation of inverse spin Hall effect in ferromagnetic FePt alloys using spin Seebeck effect
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DOI：
10.1063/1.4929691
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发表时间：
2015-08
影响因子：
4
通讯作者：
T. Seki;K. Uchida;T. Kikkawa;Z. Qiu;E. Saitoh;K. Takanashi
中科院分区：
文献类型：
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作者：
T. Seki;K. Uchida;T. Kikkawa;Z. Qiu;E. Saitoh;K. Takanashi
实验观察到铁磁FePt合金的逆自旋霍尔效应。由于温度梯度产生的自旋塞贝克效应在FePt中产生自旋电流（Js）|Y3Fe5O12（YIG）结构，并且Js从YIG注入到FePt并通过FePt的ISHE转化为充电电流。FePt和YIG的磁化翻转场的显著差异导致ISHE的电压与FePt中的反常能斯特效应的电压明显分离。我们还研究了FePt晶体结构的有序化对FePt中ISHE电压大小的影响。
We experimentally observed the inverse spin Hall effect (ISHE) of ferromagnetic FePt alloys. Spin Seebeck effect due to the temperature gradient generated the spin current (Js) in the FePt|Y3Fe5O12 (YIG) structure, and Js was injected from YIG to FePt and converted to the charge current through ISHE of FePt. The significant difference in magnetization switching fields for FePt and YIG led to the clear separation of the voltage of ISHE from that of anomalous Nernst effect in FePt. We also investigated the effect of ordering of FePt crystal structure on the magnitude of ISHE voltage in FePt.