TY - JOUR
T1 - Time-domain observation of the spinmotive force in Permalloy nanowires
AU - Hayashi, Masamitsu
AU - Ieda, Jun'Ichi
AU - Yamane, Yuta
AU - Ohe, Jun Ichiro
AU - Takahashi, Yukiko K.
AU - Mitani, Seiji
AU - Maekawa, Sadamichi
PY - 2012/4/5
Y1 - 2012/4/5
N2 - The spinmotive force associated with a moving domain wall is observed directly in Permalloy nanowires using real time voltage measurements with proper subtraction of the electromotive force. Whereas the wall velocity exhibits nonlinear dependence on magnetic field, the generated voltage increases linearly with the field. We show that the sign of the voltage reverses when the wall propagation direction is altered. Numerical simulations explain quantitatively these features of spinmotive force and indicate that it scales with the field even in a field range where the wall motion is no longer associated with periodic angular rotation of the wall magnetization.
AB - The spinmotive force associated with a moving domain wall is observed directly in Permalloy nanowires using real time voltage measurements with proper subtraction of the electromotive force. Whereas the wall velocity exhibits nonlinear dependence on magnetic field, the generated voltage increases linearly with the field. We show that the sign of the voltage reverses when the wall propagation direction is altered. Numerical simulations explain quantitatively these features of spinmotive force and indicate that it scales with the field even in a field range where the wall motion is no longer associated with periodic angular rotation of the wall magnetization.
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U2 - 10.1103/PhysRevLett.108.147202
DO - 10.1103/PhysRevLett.108.147202
M3 - Article
AN - SCOPUS:84859581051
SN - 0031-9007
VL - 108
JO - Physical Review Letters
JF - Physical Review Letters
IS - 14
M1 - 147202
ER -