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Current-Induced Magnetic Skyrmions with Controllable Polarities in the Helical Phase

文献类型：期刊论文

作者Zhao, Xuebing2; Tang, Jin3,5; Pei, Ke2; Wang, Weiwei3; Lin, Shi-Zeng4; Du, Haifeng3,5; Che, Renchao1
刊名NANO LETTERS
出版日期2022-11-04
ISSN号1530-6984
关键词skyrmion zero magnetic fields current polarity switching
DOI10.1021/acs.nanolett.2c02061
通讯作者Lin, Shi-Zeng(szl@lanl.gov) ; Du, Haifeng(duhf@hmfl.ac.cn) ; Che, Renchao(rcche@fudan.edu.cn)
英文摘要We report the current-induced creation of magnetic skyrmions in a chiral magnet FeGe nanostructure by using in situ Lorentz transmission electron microscopy. We show that magnetic skyrmions with controllable polarity can be transferred from the helical ground state simply by controlling the direction of the current flow at zero magnetic fields. The force analysis and symmetry consideration, backed up by micromagnetic simulations, well explain the experimental results, where magnetic skyrmions are created because of the edge instability of the helical state in the presence of spin-transfer torque. The on-demand generation of skyrmions and control of their polarity by electric current without the need for a magnetic field will enable novel purely electric-controlled skyrmion devices.
WOS关键词ELECTRICAL DETECTION ; DYNAMICS ; STATES ; MOTION
资助项目National Key R&D Program of China[2022YFA1403603] ; National Key R&D Program of China[2018YFA0209102] ; National Key R&D Program of China[2018YFA0209100] ; National Key R&D Program of China[2021YFA1200600] ; National Natural Science Foundation of China[52231007] ; National Natural Science Foundation of China[51725101] ; National Natural Science Foundation of China[11727807] ; National Natural Science Foundation of China[51672050] ; National Natural Science Foundation of China[61790581] ; National Natural Science Foundation of China[12174396] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB33030100] ; Equipment Development Project of the Chinese Academy of Sciences[YJKYYQ20180012] ; U.S. DOE NNSA through the LDRD Program[89233218CNA000001] ; U.S. DOE Office of Science[2018BU0010] ; U.S. DOE Office of Science[2018BU0083]
WOS研究方向Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
语种英语
出版者AMER CHEMICAL SOC
WOS记录号WOS:000882965800001
资助机构National Key R&D Program of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Equipment Development Project of the Chinese Academy of Sciences ; U.S. DOE NNSA through the LDRD Program ; U.S. DOE Office of Science
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/130170]  
专题中国科学院合肥物质科学研究院
通讯作者Lin, Shi-Zeng; Du, Haifeng; Che, Renchao
作者单位1.Zhejiang Lab, Hangzhou 311100, Peoples R China
2.Fudan Univ, Dept Mat Sci, Lab Adv Mat, Shanghai Key Lab Mol Catalysis & Innovat Mat, Shanghai 200438, Peoples R China
3.Anhui Univ, Sch Phys & Optoelect Engn Sci, Hefei 230601, Peoples R China
4.Los Alamos Natl Lab, Theoret Div, Los Alamos, NM 87545 USA
5.Chinese Acad Sci, Anhui Key Lab Condensed Matter Phys Extreme Condit, High Magnet Field Lab, HFIPS, Hefei 230031, Anhui, Peoples R China
推荐引用方式
GB/T 7714		 Zhao, Xuebing,Tang, Jin,Pei, Ke,et al. Current-Induced Magnetic Skyrmions with Controllable Polarities in the Helical Phase[J]. NANO LETTERS,2022.
APA Zhao, Xuebing.,Tang, Jin.,Pei, Ke.,Wang, Weiwei.,Lin, Shi-Zeng.,...&Che, Renchao.(2022).Current-Induced Magnetic Skyrmions with Controllable Polarities in the Helical Phase.NANO LETTERS.
MLA Zhao, Xuebing,et al."Current-Induced Magnetic Skyrmions with Controllable Polarities in the Helical Phase".NANO LETTERS (2022).

入库方式： OAI收割

来源：合肥物质科学研究院

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