成果信息
Magnetization switching by magnon-mediated spin torque through an antiferromagnetic insulator
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文献类型:期刊论文
标题:Magnetization switching by magnon-mediated spin torque through an antiferromagnetic insulator
作者:Wang, Yi[1];Zhu, Dapeng[2];Yang, Yumeng[2];Lee, Kyusup[2];Mishra, Rahul[2];Go, Gyungchoon[3];Oh, Se-Hyeok[4];Kim, Dong-Hyun[5];Cai, Kaiming[2];Liu, Enlong[2];Pollard, Shawn D.[2];Shi, Shuyuan[2];Lee, Jongmin[2];Teo, Kie Leong[2];Wu, Yihong[2];Lee, Kyung-Jin[6];Yang, Hyunsoo[2]
机构:
[1]Natl Univ Singapore, Dept Elect & Comp Engn, Singapore 117576, Singapore.;Dalian Univ Technol, Minist Educ, Key Lab Mat Modificat Laser Ion & Electron Beams, Dalian 116024, Peoples R China.;
[2]Natl Univ Singapore, Dept Elect & Comp Engn, Singapore 117576, Singapore.;
[3]Korea Univ, Dept Mat Sci & Engn, Seoul 02841, South Korea.;
通讯作者:Yang, H (reprint author), Natl Univ Singapore, Dept Elect & Comp Engn, Singapore 117576, Singapore.
年:2019
期刊名称:SCIENCE影响因子和分区
来源信息:年:2019  卷:366  期:6469  页码范围:1125-+  
卷:366
期:6469
页码范围:1125-+
增刊:正刊
收录情况:SCIE(WOS:000500039200042)  
所属部门:物理学院
重要成果类型:重要期刊
语言:外文
ISSN:0036-8075
发表时间:2019-11-29
全文链接:DOI百度学术
被引频次:1
人气指数:537
浏览次数:537
基金:SpOT-LITE program (A*STAR grant) through RIE2020 funds [A18A6b0057]; National Research Foundation (NRF), Prime Minister's Office, Singapore, under its Competitive Research Programme (CRP award) [NRF-CRP12-201301]; National Research Foundation of KoreaNational Research Foundation of Korea [NRF-015M3D1A1070465, 2017R1A2B2006119]; KIST Institutional ProgramKorea Institute of Science & Technology (KIST) [2V05750]; Fundamental Research Funds for the Central UniversitiesFundamental Research Funds for the Central Universities [82232016]
摘要:Widespread applications of magnetic devices require an efficient means to manipulate the local magnetization. One mechanism is the electrical spin-transfer torque associated with electron-mediated spin currents; however, this suffers from substantial energy dissipation caused by Joule heating. We experimentally demonstrated an alternative approach based on magnon currents and achieved magnon-torque-induced magnetization switching in Bi2Se3/antiferromagnetic insulator NiO/ferromagnet devices at room temperature. The magnon currents carry spin angular momentum efficiently without involving moving electrons through a 25-nanometer-thick NiO layer. The magnon torque is sufficient to control the magnetization, which is comparable with previously observed electrical spin torque ratios. This research, which is relevant to the energy-efficient control of spintronic devices, will invigorate magnon-based memory and logic devices.
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[2]Hankel determinants of shifted Catalan-like numbers
[3]Row polynomial matrices of Riordan arrays
[4]On the maximum Laplacian Estrada index of graphs
[5]Catalan-like numbers and Stieltjes moment sequences
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