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Time-domain detection of current controlled magnetization damping in Pt/Ni81Fe19bilayer and determination of Pt spin Hall anglePublished in American Institute of Physics Inc.
2014
DOI: 10.1063/1.4896277
Volume: 105
Issue: 11
The effect of spin torque from the spin Hall effect in Pt/Ni81Fe19rectangular bilayer film was investigated using time-resolved magneto-optical Kerr microscopy. Current flow through the stack resulted in a linear variation of effective damping up to ±7%, attributed to spin current injection from the Pt into the Ni81Fe19. The spin Hall angle of Pt was estimated as 0.11 ± 0.03. The modulation of the damping depended on the angle between the current and the bias magnetic field. These results demonstrate the importance of optical detection of precessional magnetization dynamics for studying spin transfer torque due to spin Hall effect. © 2014 AIP Publishing LLC.
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Content may be subject to copyright.This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publ... ...This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in [Time-domain detection of current controlled magnetization damping in Pt/Ni81Fe19 bilayer and determination of Pt spin Hall angle. Applied Physics Letters 105, 11 (2014)] and may be found at https://doi.org/10.1063/1.4896277.
About the journal
| Journal | Applied Physics Letters |
|---|---|
| Publisher | American Institute of Physics Inc. |
| ISSN | 00036951 |
Authors (1)
Arabinda Haldar- Giant spin pumping at the ferromagnet (permalloy)-organic semiconductor (perylene diimide) interface
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