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

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
• Public URL: https://durham-repository.worktribe.com/output/1288770