Stabilization of Skyrmions in a Nanodisk Without an External Magnetic Field

Hang Li, Collins Ashu Akosa, Peng Yan, Yuanxu Wang, Zhenxiang Cheng

研究成果: Article査読

1 被引用数 (Scopus)

抄録

We study, in the absence of a magnetic field, the stability of skyrmions in a disk-shaped ferromagnetic multilayer in the presence of locally pinned spins at the edge. This particular boundary condition suppresses the formation of helical states yet enhances the stabilization of states with rotational symmetry, such as Neél skyrmions. Numerical simulation shows that the size of the disk is a viable parameter to control the creation and annihilation of skyrmionic states. We also find that the demagnetization field renormalizes the Dzyaloshinskii-Moriya interaction. This study opens an alternative avenue to the generation, stabilization, and control of magnetic skyrmions in field-free heterostructures.

本文言語English
論文番号034046
ジャーナルPhysical Review Applied
13
3
DOI
出版ステータスPublished - 2020 2
外部発表はい

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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