兰州大学机构库 >物理科学与技术学院
Spin-orbit torque-induced magnetization switching in Pt/Co-Tb/Ta structures
Wu, Yunzhuo1; Zeng, Xiaoxue1; Guo, Yonghai1; Jia, Qi2; Wang, Bo1; Cao, JW(曹江伟)1
2021-01-11
Source PublicationAPPLIED PHYSICS LETTERS
ISSN0003-6951
Volume118Issue:2
AbstractAlthough transition metal (TM)-rare earth (RE) alloy film has potential application as an information storage medium in spintronic devices, study of the physical mechanism and microscopic process for the current-induced magnetization switching by spin-orbit torque (SOT) in TM-RE is still inadequate. In this work, we investigated the SOT effect and its driven magnetization switching in Pt/Co-Tb/Ta structures with various Co-Tb compositions. The results show that the current-induced SOT effective fields follow 1/M-s law near the compensation composition in this structure. Because of the large SOT effective field and the low coercivity for the Co-Tb layer near the compensation composition, the current-induced magnetization switching with a threshold current density as low as 10(10) A/m(2) was achieved in the system. The direct Kerr imaging on the switching process verifies two different current-induced switching mechanisms in the Pt/Co-Tb/Ta system.
PublisherAMER INST PHYSICS
DOI10.1063/5035835
Indexed ByEI ; SCOPUS ; SCIE
Language英语
WOS Research AreaPhysics
WOS SubjectPhysics, Applied
WOS IDWOS:000611830700001
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.lzu.edu.cn/handle/262010/449009
Collection物理科学与技术学院
Corresponding AuthorCao, Jiangwei
Affiliation1.Lanzhou Univ, Minist Educ, Key Lab Magnetism & Magnet Mat, Lanzhou 730000, Peoples R China;
2.Lanzhou Univ, Cuiying Honors Coll, Lanzhou 730000, Peoples R China
First Author AffilicationSchool of Physical Sicence and Technology
Corresponding Author AffilicationSchool of Physical Sicence and Technology
Recommended Citation
GB/T 7714
Wu, Yunzhuo,Zeng, Xiaoxue,Guo, Yonghai,et al. Spin-orbit torque-induced magnetization switching in Pt/Co-Tb/Ta structures[J]. APPLIED PHYSICS LETTERS,2021,118(2).
APA Wu, Yunzhuo,Zeng, Xiaoxue,Guo, Yonghai,Jia, Qi,Wang, Bo,&Cao, Jiangwei.(2021).Spin-orbit torque-induced magnetization switching in Pt/Co-Tb/Ta structures.APPLIED PHYSICS LETTERS,118(2).
MLA Wu, Yunzhuo,et al."Spin-orbit torque-induced magnetization switching in Pt/Co-Tb/Ta structures".APPLIED PHYSICS LETTERS 118.2(2021).
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