当前位置: X-MOL 学术APL Mater. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Negligible spin–charge conversion in Bi films and Bi/Ag(Cu) bilayers
APL Materials ( IF 6.1 ) Pub Date : 2021-05-18 , DOI: 10.1063/5.0048042
Di Yue 1, 2 , Weiwei Lin 1 , C. L. Chien 1
Affiliation  

Spin pumping experiments using ferromagnetic metals have reported highly efficient spin–charge conversion in Bi and at the Bi/Ag interface, possibly due to the inverse Rashba–Edelstein effect. However, longitudinal spin Seebeck effect experiments using the yttrium iron garnet ferrimagnetic insulator in Bi films and Bi/Ag bilayers do not show evidence of appreciable spin-to-charge conversion except the large Nernst signal inherent to Bi. These contrasting conclusions highlight the differences between magnetic metals and magnetic insulators as spin current injectors. Only the detected voltages that adhere to the inverse spin Hall effect of jC = (2e/ℏ)θSH jS × σ are due to spin currents.

中文翻译:

Bi薄膜和Bi/Ag(Cu)双层中的自旋电荷转换可忽略不计

使用铁磁金属的自旋泵浦实验报告了 Bi 和 Bi/Ag 界面处的高效自旋电荷转换,这可能是由于反 Rashba-Edelstein 效应。然而,在 Bi 膜和 Bi/Ag 双层中使用钇铁石榴石亚铁磁绝缘体的纵向自旋塞贝克效应实验没有显示出明显的自旋电荷转换的证据,除了 Bi 固有的大 Nernst 信号。这些对比结论突出了磁性金属和磁性绝缘体作为自旋电流注入器之间的差异。只有符合j C = (2 e /ℏ) θ SH j S × σ的逆自旋霍尔效应的检测电压是由自旋电流引起的。
更新日期:2021-05-30
down
wechat
bug