过渡金属硫族化合物与坡莫合金二维界面处的大自旋-电荷转换
应用物理
2022-09-02 v1
摘要
自旋-电荷转换是实现自旋电子器件的基本要求。近来,半导体过渡金属硫族化合物(TMDs)单层因其高自旋轨道耦合及晶体结构缺乏反演对称性,在自旋-电荷转换方面引起广泛关注。然而,基于 TMD 的界面处自旋-电荷转换直接测量的报道十分有限。在此,我们报道了在室温下观察到 NiFe(Py)与四种大面积(~mm)单层(ML)TMDs——即 MoS、MoSe、WS 和 WSe——界面处产生的大自旋-电荷转换。我们表明,自旋混合电导与 Rashba 效率参数()均随 ML TMD 层的自旋轨道耦合强度而缩放。四种单层 TMD 的 参数介于 与 nm 之间,显示出大的自旋-电荷转换。我们的发现揭示,TMD/铁磁体界面可用于高效产生与探测自旋流,为新型自旋电子器件开辟了新机遇。
引用
@article{arxiv.2209.00332,
title = {Large spin-to-charge conversion at the two-dimensional interface of transition metal dichalcogenides and permalloy},
author = {Himanshu Bangar and Akash Kumar and Niru Chowdhury and Richa Mudgal and Pankhuri Gupta and Ram Singh Yadav and Samaresh Das and P. K. Muduli},
journal= {arXiv preprint arXiv:2209.00332},
year = {2022}
}
备注
This document is the unedited Author's version of a Submitted Work that was subsequently accepted for publication in ACS Appl. Mater. Interfaces [copyright ACS Publishing] after peer review