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Platinum composition dependence of spin-orbit torque in (Fe0.8Mn0.2)1−xPtx single-layer ferromagnet

Luo, Ziyan; Lu, Ling; Xie, Hang; Xu, Yanjun; Chen, Xin; Talapatra, Abhishek; Adeyeye, Adekunle Olusola; Hua, Younan; Li, Xiaomin; Wu, Yihong

Platinum composition dependence of spin-orbit torque in (Fe0.8Mn0.2)1−xPtx single-layer ferromagnet Thumbnail


Authors

Ziyan Luo

Ling Lu

Hang Xie

Yanjun Xu

Xin Chen

Abhishek Talapatra

Younan Hua

Xiaomin Li

Yihong Wu



Abstract

We have investigated the effect of the Pt composition on the spin–orbit torque in a (Fe0.8Mn0.2)1xPtx single-layer ferromagnet. We observed that while the field-like torque decreases and even reverses sign with increasing the Pt composition, the damping-like torque increases monotonically and reaches 0.99 Oe=ð1010 A=m2Þ in a single-layer (Fe0.8Mn0.2)0.52Pt0.48 film. The results corroborate the anomalous Hall effect and surface spin rotation model presented previously, and the relative ratio between the damping-like and field-like torques can be qualitatively understood as the relative phase change in spin-conserving and spin-flip scattering.

Citation

Luo, Z., Lu, L., Xie, H., Xu, Y., Chen, X., Talapatra, A., …Wu, Y. (2020). Platinum composition dependence of spin-orbit torque in (Fe0.8Mn0.2)1−xPtx single-layer ferromagnet. Applied Physics Letters, 117(17), Article 172402. https://doi.org/10.1063/5.0023957

Journal Article Type Article
Acceptance Date Oct 9, 2020
Online Publication Date Oct 26, 2020
Publication Date 2020-10
Deposit Date Oct 26, 2020
Publicly Available Date Oct 26, 2021
Journal Applied Physics Letters
Print ISSN 0003-6951
Electronic ISSN 1077-3118
Publisher American Institute of Physics
Peer Reviewed Peer Reviewed
Volume 117
Issue 17
Article Number 172402
DOI https://doi.org/10.1063/5.0023957

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Copyright Statement
© 2020 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in
Luo, Ziyan, Lu, Ling, Xie, Hang, Xu, Yanjun, Chen, Xin, Talapatra, Abhishek, Adeyeye, Adekunle Olusola, Hua, Younan, Li, Xiaomin & Wu, Yihong (2020). Platinum composition dependence of spin-orbit torque in (Fe0.8Mn0.2)1−xPtx single-layer ferromagnet. Applied Physics Letters 117(17): 172402 and may be found at https://doi.org/10.1063/5.0023957





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