Spin-transfer-torque-assisted magnetization reversal in spin-valve strips using the spin-pumping effect

Mao Takahashi, Yukio Nozaki

研究成果: Article査読

抄録

The modulation of a switching field by a spin-transfer torque generated by the spin-pumping effect is demonstrated in spin-valve strips. A spin current pumped into a spin valve prefers an antiparallel configuration of magnetization, so that the hysteresis loop of a soft magnetic layer is shifted by applying an alternating-current magnetic field with a frequency that matched the resonant condition of a hard magnetic layer. Furthermore, we confirmed that an alternating spin current generated by the spin pumping in the hard magnetic layer produces an orthogonal magnetic torque that can reduce the coercive field of the soft magnetic layer.

本文言語English
論文番号063002
ジャーナルApplied Physics Express
9
6
DOI
出版ステータスPublished - 2016 6

ASJC Scopus subject areas

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

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