Influence of Dzyaloshinskii-Moriya interaction on the magnetic vortex reversal in an off-centered nanocontact geometry

doi:10.1088/1674-1056/ac4cbd

中国物理B ›› 2022, Vol. 31 ›› Issue (9): 97501-097501.doi: 10.1088/1674-1056/ac4cbd

Influence of Dzyaloshinskii-Moriya interaction on the magnetic vortex reversal in an off-centered nanocontact geometry

Hua-Nan Li(李化南), Tong-Xin Xue(薛彤鑫), Lei Chen(陈磊), Ying-Rui Sui(隋瑛瑞), and Mao-Bin Wei(魏茂彬)^†

College of Physics, Jilin Normal University, Siping 136000, China

收稿日期:2021-10-25 修回日期:2022-01-03 接受日期:2022-01-19 出版日期:2022-08-19 发布日期:2022-09-01
通讯作者: Mao-Bin Wei E-mail:maobinli66@126.com
基金资助:
Project supported by the National Natural Science Foundation of China (Grant Nos. 11774045 and 22078124) and the Program for the Development of Science and Technology of Jilin Province, China (Grant No. 20210101410JC).

Influence of Dzyaloshinskii-Moriya interaction on the magnetic vortex reversal in an off-centered nanocontact geometry

Hua-Nan Li(李化南), Tong-Xin Xue(薛彤鑫), Lei Chen(陈磊), Ying-Rui Sui(隋瑛瑞), and Mao-Bin Wei(魏茂彬)^†

College of Physics, Jilin Normal University, Siping 136000, China

Received:2021-10-25 Revised:2022-01-03 Accepted:2022-01-19 Online:2022-08-19 Published:2022-09-01
Contact: Mao-Bin Wei E-mail:maobinli66@126.com
Supported by:
Project supported by the National Natural Science Foundation of China (Grant Nos. 11774045 and 22078124) and the Program for the Development of Science and Technology of Jilin Province, China (Grant No. 20210101410JC).

摘要/Abstract

摘要： The influence of Dzyaloshinskii-Moriya interaction (DMI) on the vortex reversal driven by an out-of-plane spin-polarized current in an off-centered nanocontact structure is investigated. The simulation results show that DMI plays a vital role in vortex core reversal, including reversal current density, reversal velocity and reversal time. Under the influence of DMI, magnetic vortices still reverse polarity through the nucleation and annihilation of vortex and anti-vortex, with some peculiar characteristics. These results open up new possibilities for the application of magnetic vortex-based spin-transfer encryption nano-storage.

关键词: magnetic vortex, spin-polarized current, micromagnetic simulation

Abstract: The influence of Dzyaloshinskii-Moriya interaction (DMI) on the vortex reversal driven by an out-of-plane spin-polarized current in an off-centered nanocontact structure is investigated. The simulation results show that DMI plays a vital role in vortex core reversal, including reversal current density, reversal velocity and reversal time. Under the influence of DMI, magnetic vortices still reverse polarity through the nucleation and annihilation of vortex and anti-vortex, with some peculiar characteristics. These results open up new possibilities for the application of magnetic vortex-based spin-transfer encryption nano-storage.

Key words: magnetic vortex, spin-polarized current, micromagnetic simulation

中图分类号: (Micromagnetic simulations ?)

75.78.Cd

75.75.-c (Magnetic properties of nanostructures) 72.25.Mk (Spin transport through interfaces)

Hua-Nan Li(李化南), Tong-Xin Xue(薛彤鑫), Lei Chen(陈磊), Ying-Rui Sui(隋瑛瑞), and Mao-Bin Wei(魏茂彬)^†. Influence of Dzyaloshinskii-Moriya interaction on the magnetic vortex reversal in an off-centered nanocontact geometry[J]. 中国物理B, 2022, 31(9): 97501-097501.

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Influence of Dzyaloshinskii-Moriya interaction on the magnetic vortex reversal in an off-centered nanocontact geometry

Influence of Dzyaloshinskii-Moriya interaction on the magnetic vortex reversal in an off-centered nanocontact geometry

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