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Dynamics of chiral solitons driven by polarized currents in monoaxial helimagnets
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,...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7686507/ https://www.ncbi.nlm.nih.gov/pubmed/33235328 http://dx.doi.org/10.1038/s41598-020-76903-8 |
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author | Laliena, Victor Bustingorry, Sebastian Campo, Javier |
author_facet | Laliena, Victor Bustingorry, Sebastian Campo, Javier |
author_sort | Laliena, Victor |
collection | PubMed |
description | 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 | Online Article Text |
id | pubmed-7686507 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-76865072020-11-27 Dynamics of chiral solitons driven by polarized currents in monoaxial helimagnets Laliena, Victor Bustingorry, Sebastian Campo, Javier Sci Rep Article 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. Nature Publishing Group UK 2020-11-24 /pmc/articles/PMC7686507/ /pubmed/33235328 http://dx.doi.org/10.1038/s41598-020-76903-8 Text en © The Author(s) 2020, corrected publication 2022 https://creativecommons.org/licenses/by/4.0/Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . |
spellingShingle | Article Laliena, Victor Bustingorry, Sebastian Campo, Javier Dynamics of chiral solitons driven by polarized currents in monoaxial helimagnets |
title | 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_short | Dynamics of chiral solitons driven by polarized currents in monoaxial helimagnets |
title_sort | dynamics of chiral solitons driven by polarized currents in monoaxial helimagnets |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7686507/ https://www.ncbi.nlm.nih.gov/pubmed/33235328 http://dx.doi.org/10.1038/s41598-020-76903-8 |
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