Giant Room Temperature Interface Spin Hall and Inverse Spin Hall Effects

被引：190

作者：

Wang, Lei ^{[1
,2
,3
,4
]}

Wesselink, R. J. H. ^{[3
,4
]}

Liu, Yi ^{[1
,2
,3
,4
]}

Yuan, Zhe ^{[1
,2
]}

Xia, Ke ^{[1
,2
]}

Kelly, Paul J. ^{[3
,4
]}

机构：

[1] Beijing Normal Univ, Ctr Adv Quantum Studies, Beijing 100875, Peoples R China

[2] Beijing Normal Univ, Dept Phys, Beijing 100875, Peoples R China

[3] Univ Twente, Fac Sci & Technol, POB 217, NL-7500 AE Enschede, Netherlands

[4] Univ Twente, MESA Inst Nanotechnol, POB 217, NL-7500 AE Enschede, Netherlands

来源：

PHYSICAL REVIEW LETTERS | 2016年 / 116卷 / 19期

关键词：

D O I：

10.1103/PhysRevLett.116.196602

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The spin Hall angle (SHA) is a measure of the efficiency with which a transverse spin current is generated from a charge current by the spin-orbit coupling and disorder in the spin Hall effect (SHE). In a study of the SHE for a Pt vertical bar Py (Py = Ni80Fe20) bilayer using a first-principles scattering approach, we find a SHA that increases monotonically with temperature and is proportional to the resistivity for bulk Pt. By decomposing the room temperature SHE and inverse SHE currents into bulk and interface terms, we discover a giant interface SHA that dominates the total inverse SHE current with potentially major consequences for applications.

引用

页数：6

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