Deterministic spin-orbit torque switching including the interplay between spin polarization and kagome plane in Mn3Sn

doi:doi.org/10.1103/PhysRevB.109.134433

	Deterministic spin-orbit torque switching including the interplay between spin polarization and kagome plane in Mn3Sn
	Zhengde Xu1,2,3 ; Xue Zhang1,2,3 ; Yixiao Qiao1 ; Gengchiau Liang 4,5; Shuyuan Shi 6; Zhifeng Zhu1,7
	2024-04-23
发表期刊	PHYSICAL REVIEW B (IF:3.2[JCR-2023],3.3[5-Year])
ISSN	2469-9950
EISSN	2469-9969
卷号	109 期号:13 页码:134433
发表状态	已发表
DOI	doi.org/10.1103/PhysRevB.109.134433
摘要	Previous research has demonstrated the spin-orbit torque (SOT) switching of Mn3Sn in configuration I, where the spin polarization σ resides within the kagome plane. However, this configuration has yielded several unexpected outcomes, giving rise to debates concerning the fundamental physics governing the switching process. Alternatively, in configuration II, σ is perpendicular to the kagome plane, which bears greater resemblance to the ferromagnetic system. In this study, we show successful SOT switching of Mn3Sn in configuration II, demonstrating behaviors more akin to ferromagnets, e.g., the critical switching current density (Jcrit) and external field (Hext) are in the order of 1010A/m2 and tens of Oersted, respectively. The switching result is also independent of the initial state. We further show that the distinctive spin structure of Mn3Sn leads to unique switching characteristics, including Jcrit increasing linearly with Hext and the opposite switching polarity to ferromagnetism. A switching phase diagram is further provided as a guideline for experimental demonstrations, offering a clear physical picture for the observed phenomena. © 2024 American Physical Society.
关键词	Spin-orbit torque Mn3Sn antiferromagnetic switching
学科门类	工学
URL	查看原文
收录类别	SCI ; EI
语种	英语
出版者	American Physical Society
EI入藏号	20241815997309
EI主题词	Tin alloys
EI分类号	543.2 Manganese and Alloys ; 546.2 Tin and Alloys ; 701.2 Magnetism: Basic Concepts and Phenomena ; 708.4 Magnetic Materials ; 932.1 High Energy Physics
原始文献类型	Journal article (JA)
文献类型	期刊论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/364639
专题	信息科学与技术学院_博士生信息科学与技术学院_硕士生信息科学与技术学院_PI研究组_祝智峰组
通讯作者	Zhifeng Zhu
作者单位	1.ShanghaiTech University 2.Chinese Academy of Sciences 3.University of Chinese Academy of Sciences 4.National University of Singapore 5.National Yang-Ming Chiao Tung University 6.Beihang University 7.Shanghai Engineering Research Center of Energy Efficient and Custom AI IC
第一作者单位	上海科技大学
通讯作者单位	上海科技大学
第一作者的第一单位	上海科技大学
推荐引用方式 GB/T 7714	Zhengde Xu,Xue Zhang,Yixiao Qiao,et al. Deterministic spin-orbit torque switching including the interplay between spin polarization and kagome plane in Mn3Sn[J]. PHYSICAL REVIEW B,2024,109(13):134433.
APA	Zhengde Xu,Xue Zhang,Yixiao Qiao,Gengchiau Liang,Shuyuan Shi,&Zhifeng Zhu.(2024).Deterministic spin-orbit torque switching including the interplay between spin polarization and kagome plane in Mn3Sn.PHYSICAL REVIEW B,109(13),134433.
MLA	Zhengde Xu,et al."Deterministic spin-orbit torque switching including the interplay between spin polarization and kagome plane in Mn3Sn".PHYSICAL REVIEW B 109.13(2024):134433.