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

doi:10.1088/1674-1056/ac4cbd

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.

Keywords: magnetic vortex spin-polarized current micromagnetic simulation

Received: 25 October 2021
Revised: 03 January 2022
Accepted manuscript online: 19 January 2022

PACS:	75.78.Cd	(Micromagnetic simulations ?)
	75.75.-c	(Magnetic properties of nanostructures)
	72.25.Mk	(Spin transport through interfaces)

Fund: 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).

Corresponding Authors: Mao-Bin Wei
E-mail: maobinli66@126.com

Cite this article:

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 2022 Chin. Phys. B 31 097501

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

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