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Temperature dependence of carrier spin polarization determined from current-induced domain wall motion in a Co/Ni nanowire

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12 Author(s)
Ueda, K. ; Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan ; Koyama, T. ; Hiramatsu, R. ; Chiba, D.
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We have investigated the temperature dependence of the current-induced magnetic domain wall (DW) motion in a perpendicularly magnetized Co/Ni nanowire at various temperatures and with various applied currents. The carrier spin polarization was estimated from the measured domain wall velocity. We found that it decreased more with increasing temperature from 100 K to 530 K than the saturation magnetization did.

Published in:

Applied Physics Letters  (Volume:100 ,  Issue: 20 )

Date of Publication:

May 2012

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