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Relaxation mechanism in NiFe thin films driven by spin angular momentum absorption throughout the antiferromagnetic phase transition in native surface oxides
Abstract : We report an alternative mechanism for the physical origin of the temperature-dependent ferromagnetic relaxation of Permalloy (NiFe) thin films. Through spin-pumping experiments, we demonstrate that the peak in the temperature-dependence of NiFe damping can be understood in terms of enhanced spin angular momentum absorption at the magnetic phase transition in antiferromagnetic surface-oxidized layers. These results suggest new avenues for the investigation of an incompletely-understood phenomenon in physics.
Cited literature [46 references]
https://hal.archives-ouvertes.fr/hal-01568743
Contributor : Vincent Baltz Connect in order to contact the contributor
Submitted on : Sunday, May 19, 2019 - 5:41:02 PM
Last modification on : Tuesday, May 11, 2021 - 11:36:14 AM
Contributor : Vincent Baltz Connect in order to contact the contributor
Submitted on : Sunday, May 19, 2019 - 5:41:02 PM
Last modification on : Tuesday, May 11, 2021 - 11:36:14 AM
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PRB_95_054416_(2017).pdf
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