Dynamics of chiral solitons driven by polarized currents in monoaxial helimagnets

Abstract Chiral solitons are one dimensional localized magnetic structures that are metastable in some ferromagnetic systems with Dzyaloshinskii–Moriya interactions and/or uniaxial magnetic anisotropy. Though topological textures in general provide a very interesting playground for new spintronics p...

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Autores principales:	Victor Laliena, Sebastian Bustingorry, Javier Campo
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2020
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/9ca4d49c1afe4b24b3ca0457c7860b16
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spelling	oai:doaj.org-article:9ca4d49c1afe4b24b3ca0457c7860b162021-12-02T16:08:58ZDynamics of chiral solitons driven by polarized currents in monoaxial helimagnets10.1038/s41598-020-76903-82045-2322https://doaj.org/article/9ca4d49c1afe4b24b3ca0457c7860b162020-11-01T00:00:00Zhttps://doi.org/10.1038/s41598-020-76903-8https://doaj.org/toc/2045-2322Abstract Chiral solitons are one dimensional localized magnetic structures that are metastable in some ferromagnetic systems with Dzyaloshinskii–Moriya interactions and/or uniaxial magnetic anisotropy. Though topological textures in general provide a very interesting playground for new spintronics phenomena, how to properly create and control single chiral solitons is still unclear. We show here that chiral solitons in monoaxial helimagnets, characterized by a uniaxial Dzyaloshinskii–Moriya interaction, can be stabilized with external magnetic fields. Once created, the soliton moves steadily in response to a polarized electric current, provided the induced spin-transfer torque has a dissipative (nonadiabatic) component. The structure of the soliton depends on the applied current density in such a way that steady motion exists only if the applied current density is lower than a critical value, beyond which the soliton is no longer stable.Victor LalienaSebastian BustingorryJavier CampoNature 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 Victor Laliena Sebastian Bustingorry Javier Campo Dynamics of chiral solitons driven by polarized currents in monoaxial helimagnets
description	Abstract Chiral solitons are one dimensional localized magnetic structures that are metastable in some ferromagnetic systems with Dzyaloshinskii–Moriya interactions and/or uniaxial magnetic anisotropy. Though topological textures in general provide a very interesting playground for new spintronics phenomena, how to properly create and control single chiral solitons is still unclear. We show here that chiral solitons in monoaxial helimagnets, characterized by a uniaxial Dzyaloshinskii–Moriya interaction, can be stabilized with external magnetic fields. Once created, the soliton moves steadily in response to a polarized electric current, provided the induced spin-transfer torque has a dissipative (nonadiabatic) component. The structure of the soliton depends on the applied current density in such a way that steady motion exists only if the applied current density is lower than a critical value, beyond which the soliton is no longer stable.
format	article
author	Victor Laliena Sebastian Bustingorry Javier Campo
author_facet	Victor Laliena Sebastian Bustingorry Javier Campo
author_sort	Victor Laliena
title	Dynamics of chiral solitons driven by polarized currents in monoaxial helimagnets
title_short	Dynamics of chiral solitons driven by polarized currents in monoaxial helimagnets
title_full	Dynamics of chiral solitons driven by polarized currents in monoaxial helimagnets
title_fullStr	Dynamics of chiral solitons driven by polarized currents in monoaxial helimagnets
title_full_unstemmed	Dynamics of chiral solitons driven by polarized currents in monoaxial helimagnets
title_sort	dynamics of chiral solitons driven by polarized currents in monoaxial helimagnets
publisher	Nature Portfolio
publishDate	2020
url	https://doaj.org/article/9ca4d49c1afe4b24b3ca0457c7860b16
work_keys_str_mv	AT victorlaliena dynamicsofchiralsolitonsdrivenbypolarizedcurrentsinmonoaxialhelimagnets AT sebastianbustingorry dynamicsofchiralsolitonsdrivenbypolarizedcurrentsinmonoaxialhelimagnets AT javiercampo dynamicsofchiralsolitonsdrivenbypolarizedcurrentsinmonoaxialhelimagnets
_version_	1718384486980255744

Dynamics of chiral solitons driven by polarized currents in monoaxial helimagnets

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