Current-Induced Magnetic Skyrmions with Controllable Polarities in the Helical Phase | |
Zhao, Xuebing1; Tang, Jin2,4; Pei, Ke1; Wang, Weiwei2; Lin, Shi-Zeng3; Du, Haifeng2,4; Che, Renchao5 | |
刊名 | NANO LETTERS |
2022-11-04 | |
关键词 | skyrmion zero magnetic fields current polarity switching |
ISSN号 | 1530-6984 |
DOI | 10.1021/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. |
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关键词 | ELECTRICAL DETECTION ; DYNAMICS ; STATES ; MOTION |
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 |
内容类型 | 期刊论文 |
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.Fudan Univ, Dept Mat Sci, Lab Adv Mat, Shanghai Key Lab Mol Catalysis & Innovat Mat, Shanghai 200438, Peoples R China 2.Anhui Univ, Sch Phys & Optoelect Engn Sci, Hefei 230601, Peoples R China 3.Los Alamos Natl Lab, Theoret Div, Los Alamos, NM 87545 USA 4.Chinese Acad Sci, Anhui Key Lab Condensed Matter Phys Extreme Condit, High Magnet Field Lab, HFIPS, Hefei 230031, Anhui, Peoples R China 5.Zhejiang Lab, Hangzhou 311100, 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). |
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