Perpendicularly Polarized Spin Hall Effects Induced by Spin-Dependent Scattering in Ferromagnetic Metals
Materials Science
2022-07-12 v2 Mesoscale and Nanoscale Physics
Abstract
Spin currents in ferromagnets afford diverse functionalities. We evaluate the extrinsic spin Hall effects of magnetic impurity scattering in ferromagnetic metals. We show that spin-dependent scattering can provide a high spin current polarized perpendicularly to the magnetization direction and is a dominant mechanism in the moderate-conductivity regime. We find that the superposition of the spin-conserve and spin-flip channels causes the spin currents. These findings suggest that optimizing alloy composition is an effective strategy to control the spin Hall effect.
Keywords
Cite
@article{arxiv.2201.06222,
title = {Perpendicularly Polarized Spin Hall Effects Induced by Spin-Dependent Scattering in Ferromagnetic Metals},
author = {Yuta Yahagi and Daisuke Miura and Akimasa Sakuma},
journal= {arXiv preprint arXiv:2201.06222},
year = {2022}
}
Comments
12 pages, 3 figures, 1 table