Helical and skyrmion lattice phases in three-dimensional chiral magnets: Effect of anisotropic interactions

Abstract In this work, we study the magnetic orders of a classical spin model with anisotropic exchanges and Dzyaloshinskii-Moriya interactions in order to understand the uniaxial stress effect in chiral magnets such as MnSi. Variational zero temperature calculations demonstrate that various helical...

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Autores principales:	J. Chen, W. P. Cai, M. H. Qin, S. Dong, X. B. Lu, X. S. Gao, J.-M. Liu
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/76057c31e32e4b51b6a9bca3772985e0
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spelling	oai:doaj.org-article:76057c31e32e4b51b6a9bca3772985e02021-12-02T11:52:18ZHelical and skyrmion lattice phases in three-dimensional chiral magnets: Effect of anisotropic interactions10.1038/s41598-017-07907-02045-2322https://doaj.org/article/76057c31e32e4b51b6a9bca3772985e02017-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-07907-0https://doaj.org/toc/2045-2322Abstract In this work, we study the magnetic orders of a classical spin model with anisotropic exchanges and Dzyaloshinskii-Moriya interactions in order to understand the uniaxial stress effect in chiral magnets such as MnSi. Variational zero temperature calculations demonstrate that various helical orders can be developed depending on the interaction anisotropy magnitude, consistent with experimental observations at low temperatures. Furthermore, the uniaxial stress induced creation and annihilation of skyrmions can be also qualitatively reproduced in our Monte Carlo simulations. Our work suggests that the interaction anisotropy tuned by applied uniaxial stress may play an essential role in modulating the magnetic orders in strained chiral magnets.J. ChenW. P. CaiM. H. QinS. DongX. B. LuX. S. GaoJ.-M. LiuNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-8 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q J. Chen W. P. Cai M. H. Qin S. Dong X. B. Lu X. S. Gao J.-M. Liu Helical and skyrmion lattice phases in three-dimensional chiral magnets: Effect of anisotropic interactions
description	Abstract In this work, we study the magnetic orders of a classical spin model with anisotropic exchanges and Dzyaloshinskii-Moriya interactions in order to understand the uniaxial stress effect in chiral magnets such as MnSi. Variational zero temperature calculations demonstrate that various helical orders can be developed depending on the interaction anisotropy magnitude, consistent with experimental observations at low temperatures. Furthermore, the uniaxial stress induced creation and annihilation of skyrmions can be also qualitatively reproduced in our Monte Carlo simulations. Our work suggests that the interaction anisotropy tuned by applied uniaxial stress may play an essential role in modulating the magnetic orders in strained chiral magnets.
format	article
author	J. Chen W. P. Cai M. H. Qin S. Dong X. B. Lu X. S. Gao J.-M. Liu
author_facet	J. Chen W. P. Cai M. H. Qin S. Dong X. B. Lu X. S. Gao J.-M. Liu
author_sort	J. Chen
title	Helical and skyrmion lattice phases in three-dimensional chiral magnets: Effect of anisotropic interactions
title_short	Helical and skyrmion lattice phases in three-dimensional chiral magnets: Effect of anisotropic interactions
title_full	Helical and skyrmion lattice phases in three-dimensional chiral magnets: Effect of anisotropic interactions
title_fullStr	Helical and skyrmion lattice phases in three-dimensional chiral magnets: Effect of anisotropic interactions
title_full_unstemmed	Helical and skyrmion lattice phases in three-dimensional chiral magnets: Effect of anisotropic interactions
title_sort	helical and skyrmion lattice phases in three-dimensional chiral magnets: effect of anisotropic interactions
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/76057c31e32e4b51b6a9bca3772985e0
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_version_	1718395110352224256

Helical and skyrmion lattice phases in three-dimensional chiral magnets: Effect of anisotropic interactions

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