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Updated: May 22, 2026

Fabrication of Magnetic Nanostructures on Silicon Nitride Membranes for Magnetic Vortex Studies Using Transmission Microscopy Techniques
Published on: July 2, 2018
Time-domain observation of the spinmotive force in permalloy nanowires
Masamitsu Hayashi1, Jun'ichi Ieda, Yuta Yamane
1National Institute for Materials Science, Tsukuba 305-0047, Japan. hayashi.masamitsu@nims.go.jp
Abstract:
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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