Spin Hall Switching of the Magnetization in Ta/TbFeCo Structures with Bulk Perpendicular Anisotropy

Zhengyang Zhao; Mahdi Jamali; Angeline Klemm; Jian-Ping Wang

doi:10.1063/1.4916665

Spin Hall Switching of the Magnetization in Ta/TbFeCo Structures with Bulk Perpendicular Anisotropy

Mesoscale and Nanoscale Physics 2015-06-23 v1 Materials Science Other Condensed Matter

Authors: Zhengyang Zhao , Mahdi Jamali , Angeline Klemm , Jian-Ping Wang

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Abstract

Spin-orbit torques are studied in Ta/TbFeCo patterned structures with a bulk perpendicular magnetic anisotropy (bulk-PMA) for the first time. The current-induced magnetization switching is investigated in the presence of a perpendicular, longitudinal, or transverse field. In order to rule out Joule heating effect, switching of the magnetization is also demonstrated using current pulses. It is found that the anti-damping torque correlated with spin Hall effect is very strong, and a spin Hall angle of about 0.12 is obtained. The field-like torque related with Rashba effect is negligible in this structure suggesting that the interface play a significant role in Rashba-like torque.

Keywords

spin-orbit torque spin hall effect magnetization switching perpendicular magnetic anisotropy ta/tbfeco rashba effect

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@article{arxiv.1501.02294,
  title  = {Spin Hall Switching of the Magnetization in Ta/TbFeCo Structures with Bulk Perpendicular Anisotropy},
  author = {Zhengyang Zhao and Mahdi Jamali and Angeline Klemm and Jian-Ping Wang},
  journal= {arXiv preprint arXiv:1501.02294},
  year   = {2015}
}

Spin Hall Switching of the Magnetization in Ta/TbFeCo Structures with Bulk Perpendicular Anisotropy

Abstract

Keywords

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