All-electrical manipulation of magnetization dynamics in a ferromagnet by antiferromagnets with anisotropic spin Hall effects

Wei Zhang, Matthias B. Jungfleisch, Frank Freimuth, Wanjun Jiang, Joseph Sklenar, John E. Pearson, John B. Ketterson, Yuriy Mokrousov, Axel Hoffmann

Research output: Contribution to journalArticle

64 Scopus citations

Abstract

We investigate spin-orbit torques of metallic CuAu-I-type antiferromagnets using spin-torque ferromagnetic resonance tuned by a dc-bias current. The observed spin torques predominantly arise from diffusive transport of spin current generated by the spin Hall effect. We find a growth-orientation dependence of the spin torques by studying epitaxial samples, which may be correlated to the anisotropy of the spin Hall effect. The observed anisotropy is consistent with first-principles calculations on the intrinsic spin Hall effect. Our work demonstrates large tunable spin-orbit effects in magnetically ordered materials.

Original languageEnglish (US)
Article number144405
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume92
Issue number14
DOIs
StatePublished - Oct 6 2015

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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