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Chiral spin ordering of electron gas in solids with broken time reversal symmetry

In this work we manifest that an electrostatic disorder in conducting systems with broken time reversal symmetry universally leads to a chiral ordering of the electron gas giving rise to skyrmion-like textures in spatial distribution of the electron spin density. We describe a microscopic mechanism...

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Autores principales: Denisov, K. S., Rozhansky, I. V., Averkiev, N. S., Lähderanta, E.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6658505/
https://www.ncbi.nlm.nih.gov/pubmed/31346225
http://dx.doi.org/10.1038/s41598-019-47274-6
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author Denisov, K. S.
Rozhansky, I. V.
Averkiev, N. S.
Lähderanta, E.
author_facet Denisov, K. S.
Rozhansky, I. V.
Averkiev, N. S.
Lähderanta, E.
author_sort Denisov, K. S.
collection PubMed
description In this work we manifest that an electrostatic disorder in conducting systems with broken time reversal symmetry universally leads to a chiral ordering of the electron gas giving rise to skyrmion-like textures in spatial distribution of the electron spin density. We describe a microscopic mechanism underlying the formation of the equilibrium chiral spin textures in two-dimensional systems with spin-orbit interaction and exchange spin splitting. We have obtained analytical expressions for spin-density response functions and have analyzed both local and non-local spin response to electrostatic perturbations for systems with parabolic-like and Dirac electron spectra. With the proposed theory we come up with a concept of controlling spin chirality by electrical means.
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spelling pubmed-66585052019-07-31 Chiral spin ordering of electron gas in solids with broken time reversal symmetry Denisov, K. S. Rozhansky, I. V. Averkiev, N. S. Lähderanta, E. Sci Rep Article In this work we manifest that an electrostatic disorder in conducting systems with broken time reversal symmetry universally leads to a chiral ordering of the electron gas giving rise to skyrmion-like textures in spatial distribution of the electron spin density. We describe a microscopic mechanism underlying the formation of the equilibrium chiral spin textures in two-dimensional systems with spin-orbit interaction and exchange spin splitting. We have obtained analytical expressions for spin-density response functions and have analyzed both local and non-local spin response to electrostatic perturbations for systems with parabolic-like and Dirac electron spectra. With the proposed theory we come up with a concept of controlling spin chirality by electrical means. Nature Publishing Group UK 2019-07-25 /pmc/articles/PMC6658505/ /pubmed/31346225 http://dx.doi.org/10.1038/s41598-019-47274-6 Text en © The Author(s) 2019 Open Access This 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 license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license 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 license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Denisov, K. S.
Rozhansky, I. V.
Averkiev, N. S.
Lähderanta, E.
Chiral spin ordering of electron gas in solids with broken time reversal symmetry
title Chiral spin ordering of electron gas in solids with broken time reversal symmetry
title_full Chiral spin ordering of electron gas in solids with broken time reversal symmetry
title_fullStr Chiral spin ordering of electron gas in solids with broken time reversal symmetry
title_full_unstemmed Chiral spin ordering of electron gas in solids with broken time reversal symmetry
title_short Chiral spin ordering of electron gas in solids with broken time reversal symmetry
title_sort chiral spin ordering of electron gas in solids with broken time reversal symmetry
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6658505/
https://www.ncbi.nlm.nih.gov/pubmed/31346225
http://dx.doi.org/10.1038/s41598-019-47274-6
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