Nucleation and stability of skyrmions in three-dimensional chiral nanostructures

Abstract We studied the magnetization evolution in three-dimensional chiral nanostructures, including nanotubes and circularly curved thin films, by micromagnetic simulations. We found that in a nanotube skyrmions can be formed by broken of the helical stripes on the left and right sides of the nano...

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Autores principales:	Yan Liu, Na Cai, Xingxing Yu, Shengjie Xuan
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2020
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/a7b9de07c77d43319c0e2b2548c10f7b
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spelling	oai:doaj.org-article:a7b9de07c77d43319c0e2b2548c10f7b2021-12-02T16:18:06ZNucleation and stability of skyrmions in three-dimensional chiral nanostructures10.1038/s41598-020-78838-62045-2322https://doaj.org/article/a7b9de07c77d43319c0e2b2548c10f7b2020-12-01T00:00:00Zhttps://doi.org/10.1038/s41598-020-78838-6https://doaj.org/toc/2045-2322Abstract We studied the magnetization evolution in three-dimensional chiral nanostructures, including nanotubes and circularly curved thin films, by micromagnetic simulations. We found that in a nanotube skyrmions can be formed by broken of the helical stripes on the left and right sides of the nanotube, and the formation of skyrmions doesn’t correspond to any abrupt change of topological number. Skyrmions can exist in a large range of magnetic field, and the thinner nanotube has a larger field range for skyrmion existence. The configuration of a skyrmion in nanotubes is different from the one in thin film. From the outer to the inner circular layer, the size of the skyrmion becomes larger, and the deformation becomes more obvious. In circularly curved magnetic films with fixed arc length, there are three kinds of hysteresis processes are found. For the curved films with a large radius, the magnetization evolution behavior is similar to the case in two-dimensional thin films. For the curved films with a small radius, the skyrmions are created by broken of the helical stripes on the left and right sides of the curved film. For the curved film with a medium radius, no skyrmion is formed in the hysteresis process.Yan LiuNa CaiXingxing YuShengjie XuanNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 10, Iss 1, Pp 1-10 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Yan Liu Na Cai Xingxing Yu Shengjie Xuan Nucleation and stability of skyrmions in three-dimensional chiral nanostructures
description	Abstract We studied the magnetization evolution in three-dimensional chiral nanostructures, including nanotubes and circularly curved thin films, by micromagnetic simulations. We found that in a nanotube skyrmions can be formed by broken of the helical stripes on the left and right sides of the nanotube, and the formation of skyrmions doesn’t correspond to any abrupt change of topological number. Skyrmions can exist in a large range of magnetic field, and the thinner nanotube has a larger field range for skyrmion existence. The configuration of a skyrmion in nanotubes is different from the one in thin film. From the outer to the inner circular layer, the size of the skyrmion becomes larger, and the deformation becomes more obvious. In circularly curved magnetic films with fixed arc length, there are three kinds of hysteresis processes are found. For the curved films with a large radius, the magnetization evolution behavior is similar to the case in two-dimensional thin films. For the curved films with a small radius, the skyrmions are created by broken of the helical stripes on the left and right sides of the curved film. For the curved film with a medium radius, no skyrmion is formed in the hysteresis process.
format	article
author	Yan Liu Na Cai Xingxing Yu Shengjie Xuan
author_facet	Yan Liu Na Cai Xingxing Yu Shengjie Xuan
author_sort	Yan Liu
title	Nucleation and stability of skyrmions in three-dimensional chiral nanostructures
title_short	Nucleation and stability of skyrmions in three-dimensional chiral nanostructures
title_full	Nucleation and stability of skyrmions in three-dimensional chiral nanostructures
title_fullStr	Nucleation and stability of skyrmions in three-dimensional chiral nanostructures
title_full_unstemmed	Nucleation and stability of skyrmions in three-dimensional chiral nanostructures
title_sort	nucleation and stability of skyrmions in three-dimensional chiral nanostructures
publisher	Nature Portfolio
publishDate	2020
url	https://doaj.org/article/a7b9de07c77d43319c0e2b2548c10f7b
work_keys_str_mv	AT yanliu nucleationandstabilityofskyrmionsinthreedimensionalchiralnanostructures AT nacai nucleationandstabilityofskyrmionsinthreedimensionalchiralnanostructures AT xingxingyu nucleationandstabilityofskyrmionsinthreedimensionalchiralnanostructures AT shengjiexuan nucleationandstabilityofskyrmionsinthreedimensionalchiralnanostructures
_version_	1718384191552356352

Nucleation and stability of skyrmions in three-dimensional chiral nanostructures

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