Anomalous Hall magnetoresistance in a ferromagnet

CORC > 宁波材料技术与工程研究所 > 中国科学院宁波材料技术与工程研究所 > 2018专题

	Anomalous Hall magnetoresistance in a ferromagnet
	Wu, Yihong; Zhang, Shufeng; Pennycook, Stephen J.; Li, Run-Wei; Xu, Yanjun; Wu, Haijun; Luo, Ziyan; Yang, Yumeng
刊名	NATURE COMMUNICATIONS
	2018
卷号	9
关键词	Spin-orbit-torque Magnetization Films Layer
英文摘要	The anomalous Hall effect, observed in conducting ferromagnets with broken time-reversal symmetry, offers the possibility to couple spin and orbital degrees of freedom of electrons in ferromagnets. In addition to charge, the anomalous Hall effect also leads to spin accumulation at the surfaces perpendicular to both the current and magnetization direction. Here, we experimentally demonstrate that the spin accumulation, subsequent spin backflow, and spin-charge conversion can give rise to a different type of spin current-related spin current related magnetoresistance, dubbed here as the anomalous Hall magnetoresistance, which has the same angular dependence as the recently discovered spin Hall magnetoresistance. The anomalous Hall magnetoresistance is observed in four types of samples: co-sputtered (Fe1-xMnx)(0.6)Pt-0.4, Fe1-xMnx/Pt multilayer, Fe1-xMnx with x = 0.17-0.65 and Fe, and analyzed using the drift-diffusion model. Our results provide an alternative route to study charge-spin conversion in ferromagnets and to exploit it for potential spintronic applications.
学科主题	Polymer Science
语种	英语
公开日期	2018-12-04
内容类型	期刊论文
源URL	[http://ir.nimte.ac.cn/handle/174433/17409]
专题	2018专题
推荐引用方式 GB/T 7714	Wu, Yihong,Zhang, Shufeng,Pennycook, Stephen J.,et al. Anomalous Hall magnetoresistance in a ferromagnet[J]. NATURE COMMUNICATIONS,2018,9.
APA	Wu, Yihong.,Zhang, Shufeng.,Pennycook, Stephen J..,Li, Run-Wei.,Xu, Yanjun.,...&Yang, Yumeng.(2018).Anomalous Hall magnetoresistance in a ferromagnet.NATURE COMMUNICATIONS,9.
MLA	Wu, Yihong,et al."Anomalous Hall magnetoresistance in a ferromagnet".NATURE COMMUNICATIONS 9(2018).