Detection of Spin-orbit Torque with Spin Rotation Symmetry

Authors

Tao Wang, University of Delaware
Sergi Lendinez, University of Delaware
M. Benjamin Jungfleisch, University of Delaware
James Kolodzey, University of Delaware
John Q. Xiao, University of Delaware
Xin Fan, University of DenverFollow

Publication Date

1-6-2020

Document Type

Article

Organizational Units

Physics and Astronomy

Keywords

Spin-orbit interactions, Ferromagnetic resonance, Magnetooptical effects, Spin Hall effect

Abstract

It has been recently demonstrated that spin–orbit coupling in ferromagnetic metals can generate spin current with symmetries different from the conventional spin Hall effect in nonmagnetic metals. The generated spin current can induce a spin–orbit torque on a neighboring magnetic layer with spin rotation symmetry. In this paper, we introduce a set of tools to measure this effect in a perpendicularly magnetized film, by using the second-order planar Hall effect method and spin-torque ferromagnetic resonance spectroscopy. These results are comparable to those detected by the polar magneto-optic Kerr effect technique.

Publication Statement

Copyright held by author or publisher. User is responsible for all copyright compliance.

Recommended Citation

Wang, Tao, et al. “Detection of Spin-Orbit Torque with Spin Rotation Symmetry.” Applied Physics Letters, vol. 116, no. 1, 2020, p. 12404. doi: 10.1063/1.5129548.