Quantitative investigation of the inverse Rashba-Edelstein effect in Bi/Ag and Ag/Bi on YIG
Quantitative investigation of the inverse Rashba-Edelstein effect in Bi/Ag and Ag/Bi on YIG
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DOI：
10.1063/1.4976691
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发表时间：
2017-02
影响因子：
4
通讯作者：
Masasyuki Matsushima;Y. Ando;S. Dushenko;R. Ohshima;R. Kumamoto;T. Shinjo;M. Shiraishi
中科院分区：
文献类型：
--
作者：
Masasyuki Matsushima;Y. Ando;S. Dushenko;R. Ohshima;R. Kumamoto;T. Shinjo;M. Shiraishi
逆Rashba-Edelstein效应(IREE)是近年来在自旋电子学和凝聚态物理学中引起关注的一种自旋转换机制。在这封信中，我们报道了用亚铁磁性绝缘体钇铁石榴石研究铋/银中的轻稀土元素。通过改变铋和银的堆积顺序，制备了两种拉什巴场方向相反的样品。从两个堆栈中都观察到了IREE产生的电流，并通过考虑到以前研究中遗漏的一些贡献来估计自旋转换效率--由IREE长度表征。这项研究提供了对IREE自旋转换机制的进一步洞察：实现高效的自旋-电荷转换器件的重要一步。
The inverse Rashba-Edelstein effect (IREE) is a spin conversion mechanism that recently attracts attention in spintronics and condensed matter physics. In this letter, we report an investigation of the IREE in Bi/Ag by using ferrimagnetic insulator yttrium iron garnet. We prepared two types of samples with opposite directions of the Rashba field by changing a stacking order of Bi and Ag. An electric current generated by the IREE was observed from both stacks, and an efficiency of spin conversion—characterized by the IREE length—was estimated by taking into account a number of contributions left out in previous studies. This study provides a further insight into the IREE spin conversion mechanism: important step towards achieving efficient spin-charge conversion devices.