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research article
Temperature derivative of the resistance of spin valves
Spin-dependent transport properties of nanowires containing individual Co/Cu/Co pseudo-spin valves were investigated by monitoring an AC voltage induced by a temperature oscillation under a continuous DC current. We observed sharp peaks in the field-dependent AC voltage response. These peaks only appear close to the magnetic field range where conventional magnetoresistance shows a reversible and gradual transition. The effect is interpreted as an extra dissipation process with a distinct temperature dependence that occurs in non-collinear magnetic configurations when transverse moment relaxation takes place.
Type
research article
Web of Science ID
WOS:000275746100115
Author(s)
Date Issued
2010
Publisher
Published in
Volume
322
Issue
9-12
Start page
1464
End page
1466
Peer reviewed
REVIEWED
Written at
EPFL
EPFL units
Available on Infoscience
April 30, 2010
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