Anomalous and spin Hall effects in a magnetic tunnel junction with Rashba spin-orbit coupling

Authors

A. V. Vedyayev, Moscow State University
M. S. Titova, Moscow State University
N. V. Ryzhanova, Moscow State University
M. Ye. Zhuravlev, Kurnakov Institute for General and Inorganic Chemistry, Russian Academy of Sciences, Moscow, Russia
Evgeny Y. Tsymbal, University of Nebraska-LincolnFollow

Date of this Version

7-15-2013

Citation

APPLIED PHYSICS LETTERS 103, 032406 (2013). DOI: 10.1063/1.4815866. https://arxiv.org/ftp/arxiv/papers/1305/1305.3467.pdf

Comments

Copyright (c) 2013 AIP Publishing LLC. Used by permission.

Abstract

Anomalous and spin Hall effects are investigated theoretically for a magnetic tunnel junction where the applied voltage produces a Rashba spin-orbit coupling within the tunneling barrier layer. The ferromagnetic electrodes are the source of the spin-polarized current. The tunneling electrons experience a spin-orbit coupling inside the barrier due to the applied electrical field. Charge and spin Hall currents are calculated as functions of the position inside the barrier and the angle between the magnetizations of the electrodes. We find that both charge and spin Hall currents are located inside the barrier near the interfaces. The dependence of the currents on magnetic configuration of the magnetic tunnel junction makes possible the manipulation by the Hall currents via rotation of the magnetization of the electrodes.