globalchange  > 气候变化与战略
DOI: 10.1016/j.scib.2020.04.008
论文题名:
Deterministic reversal of single magnetic vortex circulation by an electric field
作者: Zhang Y.; Wang C.; Huang H.; Lu J.; Liang R.; Liu J.; Peng R.; Zhang Q.; Zhang Q.; Wang J.; Gu L.; Han X.-F.; Chen L.-Q.; Ramesh R.; Nan C.-W.; Zhang J.
刊名: Science Bulletin
ISSN: 20959273
出版年: 2020
卷: 65, 期:15
起始页码: 1260
结束页码: 1267
语种: 英语
中文关键词: Deterministic reversal ; Electric-field control ; Multiferroic heterostructures ; Single magnetic vortex ; Space-varying strain
英文关键词: Electric fields ; Energy utilization ; Magnetic anisotropy ; Multiferroics ; Textures ; Thin film devices ; Vortex flow ; Electric-field control ; Low energy consumption ; Magnetoelastic energy ; Magnetoelectric thin films ; Phase-field simulation ; Pulsed electric field ; Reverse circulation ; Spin polarized currents ; Electric variables measurement
英文摘要: The ability to control magnetic vortex is critical for their potential applications in spintronic devices. Traditional methods including magnetic field, spin-polarized current etc. have been used to flip the core and/or reverse circulation of vortex. However, it is challenging for deterministic electric-field control of the single magnetic vortex textures with time-reversal broken symmetry and no planar magnetic anisotropy. Here it is reported that a deterministic reversal of single magnetic vortex circulation can be driven back and forth by a space-varying strain in multiferroic heterostructures, which is controlled by using a bi-axial pulsed electric field. Phase-field simulation reveals the mechanism of the emerging magnetoelastic energy with the space variation and visualizes the reversal pathway of the vortex. This deterministic electric-field control of the single magnetic vortex textures demonstrates a new approach to integrate the low-dimensional spin texture into the magnetoelectric thin film devices with low energy consumption. © 2020 Science China Press
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/170167
Appears in Collections:气候变化与战略

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作者单位: Department of Physics, Beijing Normal University, Beijing, 100875, China; Advanced Research Institute of Multidisciplinary Science, Beijing Institute of Technology, Beijing, 100081, China; Tsinghua National Laboratory for Information Science and Technology, Institute of Microelectronics, Tsinghua University, Beijing, 100084, China; Department of Materials Science and Engineering and Department of Physics, University of California, Berkeley and Materials Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, United States; State Key Lab of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, China; Beijing National Laboratory of Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China; Department of Materials Science and Engineering, The Pennsylvania State University, University Park, PA 16802, United States

Recommended Citation:
Zhang Y.,Wang C.,Huang H.,et al. Deterministic reversal of single magnetic vortex circulation by an electric field[J]. Science Bulletin,2020-01-01,65(15)
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