TY - JOUR
T1 - Spin-transfer-torque-assisted magnetization reversal in spin-valve strips using the spin-pumping effect
AU - Takahashi, Mao
AU - Nozaki, Yukio
N1 - Publisher Copyright:
© 2016 The Japan Society of Applied Physics.
PY - 2016/6
Y1 - 2016/6
N2 - 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.
AB - 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.
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U2 - 10.7567/APEX.9.063002
DO - 10.7567/APEX.9.063002
M3 - Article
AN - SCOPUS:84973470113
SN - 1882-0778
VL - 9
JO - Applied Physics Express
JF - Applied Physics Express
IS - 6
M1 - 063002
ER -