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

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 densi...

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Veröffentlicht in:Chinese physics B 2022-09, Vol.31 (9), p.97501-597
Hauptverfasser: Li, Hua-Nan, Xue, Tong-Xin, Chen, Lei, Sui, Ying-Rui, Wei, Mao-Bin
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Sprache:eng
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magnetic vortex
micromagnetic simulation
spin-polarized current
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container_issue 9
container_start_page 97501
container_title Chinese physics B
container_volume 31
creator Li, Hua-Nan
Xue, Tong-Xin
Chen, Lei
Sui, Ying-Rui
Wei, Mao-Bin
description 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.
doi_str_mv 10.1088/1674-1056/ac4cbd
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subjects magnetic vortex
micromagnetic simulation
spin-polarized current
title Influence of Dzyaloshinskii–Moriya interaction on the magnetic vortex reversal in an off-centered nanocontact geometry
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