Current-induced spin-orbit torque magnetization switching in a MnGa/Pt film with a perpendicular magnetic anisotropy

Reza Ranjbar, Kazuya Z. Suzuki, Yuta Sasaki, Lakhan Bainsla, Shigemi Mizukami

Research output: Contribution to journalArticlepeer-review

19 Citations (Scopus)

Abstract

Current-induced magnetization switching is demonstrated in a micron sized Hall bar consisting of Pt-capped ultrathin ferrimagnetic MnGa films. The films showed a low magnetization Ms 150 kA/m and a large perpendicular magnetic anisotropy (PMA) field 0HKeff 2:5 T, indicating a PMA thickness t product Kuefft 0:47 mJ/m2, which is relatively larger than those reported for other material films with PMA. Magnetization switching induced by an in-plane electrical current was examined with the application of an in-plane magnetic field. The phase diagram of the switching current vs the in-plane magnetic field is qualitatively consistent with that of the torque due to the spin-Hall effect in the Pt layer.

Original languageEnglish
Article number120302
JournalJapanese journal of applied physics
Volume55
Issue number12
DOIs
Publication statusPublished - 2016 Dec

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

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