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Efficient perpendicular magnetization switching by a magnetic spin Hall effect in a noncollinear antiferromagnet

文献类型：期刊论文

作者Hu, Shuai6,7; Shao, Ding-Fu3,4,5; Yang, Huanglin6,7; Pan, Chang6,7; Fu, Zhenxiao1,2; Tang, Meng6,7; Yang, Yumeng1,2; Fan, Weijia6,7; Zhou, Shiming6,7; Tsymbal, Evgeny Y.4,5
刊名NATURE COMMUNICATIONS
出版日期2022-08-01
卷号13
DOI10.1038/s41467-022-32179-2
通讯作者Yang, Yumeng(yangym1@shanghaitech.edu.cn) ; Tsymbal, Evgeny Y.(tsymbal@unl.edu) ; Qiu, Xuepeng(xpqiu@tongji.edu.cn)
英文摘要Current induced spin-orbit torques driven by the conventional spin Hall effect are widely used to manipulate the magnetization. This approach, however, is nondeterministic and inefficient for the switching of magnets with perpendicular magnetic anisotropy that are demanded by the high-density magnetic storage and memory devices. Here, we demonstrate that this limitation can be overcome by exploiting a magnetic spin Hall effect in noncollinear antiferromagnets, such as Mn3Sn. The magnetic group symmetry of Mn3Sn allows generation of the out-of-plane spin current carrying spin polarization collinear to its direction induced by an in-plane charge current. This spin current drives an out-of-plane anti-damping torque providing the deterministic switching of the perpendicular magnetization of an adjacent Ni/Co multilayer. Due to being odd with respect to time reversal symmetry, the observed magnetic spin Hall effect and the resulting spin-orbit torque can be reversed with reversal of the antiferromagnetic order. Contrary to the conventional spin-orbit torque devices, the demonstrated magnetization switching does not need an external magnetic field and requires much lower current density which is useful for low-power spintronics. Spin-orbit torques driven by the conventional spin Hall effect are widely used to switch magnetization, but this approach is nondeterministic and inefficient for magnets with perpendicular magnetic anisotropy. Here, the authors demonstrate deterministic, field-free switching in a Ni/Co multilayer by exploiting the magnetic spin Hall effect in adjacent Mn3Sn.
WOS关键词ORBIT TORQUE ; WEAK FERROMAGNETISM ; FIELD ; MN3SN
资助项目National Key R&D Program of China[2017YFA0305300] ; National Natural Science Foundation of China[62074099] ; National Natural Science Foundation of China[52022069] ; National Natural Science Foundation of China[11974260] ; National Natural Science Foundation of China[11674246] ; National Natural Science Foundation of China[11874283] ; National Natural Science Foundation of China[51801152] ; National Natural Science Foundation of China[11774064] ; Natural Science Foundation of Shanghai[19ZR1478700] ; Fundamental Research Funds for the Central Universities ; EPSCoR RII Track-1 program (NSF)[OIA-2044049]
WOS研究方向Science & Technology - Other Topics
语种英语
出版者NATURE PORTFOLIO
WOS记录号WOS:000836428700011
资助机构National Key R&D Program of China ; National Natural Science Foundation of China ; Natural Science Foundation of Shanghai ; Fundamental Research Funds for the Central Universities ; EPSCoR RII Track-1 program (NSF)
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/132011]  
专题中国科学院合肥物质科学研究院
通讯作者Yang, Yumeng; Tsymbal, Evgeny Y.; Qiu, Xuepeng
作者单位1.ShanghaiTech Univ, Shanghai Engn Res Ctr Energy Efficient & Custom A, Shanghai 201210, Peoples R China
2.ShanghaiTech Univ, Sch Informat Sci & Technol, Shanghai 201210, Peoples R China
3.Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, HFIPS, Hefei 230031, Peoples R China
4.Univ Nebraska, Nebraska Ctr Mat & Nanosci, Lincoln, NE 68588 USA
5.Univ Nebraska, Dept Phys & Astron, Lincoln, NE 68588 USA
6.Tongji Univ, Sch Phys Sci & Engn, Shanghai 200092, Peoples R China
7.Tongji Univ, Shanghai Key Lab Special Artificial Microstruct M, Shanghai 200092, Peoples R China
推荐引用方式
GB/T 7714		 Hu, Shuai,Shao, Ding-Fu,Yang, Huanglin,et al. Efficient perpendicular magnetization switching by a magnetic spin Hall effect in a noncollinear antiferromagnet[J]. NATURE COMMUNICATIONS,2022,13.
APA Hu, Shuai.,Shao, Ding-Fu.,Yang, Huanglin.,Pan, Chang.,Fu, Zhenxiao.,...&Qiu, Xuepeng.(2022).Efficient perpendicular magnetization switching by a magnetic spin Hall effect in a noncollinear antiferromagnet.NATURE COMMUNICATIONS,13.
MLA Hu, Shuai,et al."Efficient perpendicular magnetization switching by a magnetic spin Hall effect in a noncollinear antiferromagnet".NATURE COMMUNICATIONS 13(2022).

入库方式： OAI收割

来源：合肥物质科学研究院

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