Cargando…
Stabilizing magnetic skyrmions in constricted nanowires
Magnetic skyrmions are topologically-protected chiral nano-scale spin structures that offer low power and high-density functionalities for spintronic devices. They behave as particles that can be moved, created and annihilated. These characteristics make them promising information-carrying bits, hen...
Autores principales: | , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2022
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9203817/ https://www.ncbi.nlm.nih.gov/pubmed/35710866 http://dx.doi.org/10.1038/s41598-022-14345-0 |
_version_ | 1784728784156491776 |
---|---|
author | Al Saidi, Warda Sbiaa, Rachid |
author_facet | Al Saidi, Warda Sbiaa, Rachid |
author_sort | Al Saidi, Warda |
collection | PubMed |
description | Magnetic skyrmions are topologically-protected chiral nano-scale spin structures that offer low power and high-density functionalities for spintronic devices. They behave as particles that can be moved, created and annihilated. These characteristics make them promising information-carrying bits, hence a precise control of the skyrmion motion is essential. This study shows that stabilizing skyrmion is possible using a stepped nanowire geometry. The nanoconstriction dimension and materials properties are found to strongly affect the pinning, depinning and annihilation of the skyrmion. It is also observed that near the stepped region, the skyrmion slows down and its velocity changes direction before its stability. Moreover, a reduction of skyrmion size as it squeezes through the stepped region is observed. Our results will open a new strategy for the design and development of skyrmion-based devices. |
format | Online Article Text |
id | pubmed-9203817 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-92038172022-06-18 Stabilizing magnetic skyrmions in constricted nanowires Al Saidi, Warda Sbiaa, Rachid Sci Rep Article Magnetic skyrmions are topologically-protected chiral nano-scale spin structures that offer low power and high-density functionalities for spintronic devices. They behave as particles that can be moved, created and annihilated. These characteristics make them promising information-carrying bits, hence a precise control of the skyrmion motion is essential. This study shows that stabilizing skyrmion is possible using a stepped nanowire geometry. The nanoconstriction dimension and materials properties are found to strongly affect the pinning, depinning and annihilation of the skyrmion. It is also observed that near the stepped region, the skyrmion slows down and its velocity changes direction before its stability. Moreover, a reduction of skyrmion size as it squeezes through the stepped region is observed. Our results will open a new strategy for the design and development of skyrmion-based devices. Nature Publishing Group UK 2022-06-16 /pmc/articles/PMC9203817/ /pubmed/35710866 http://dx.doi.org/10.1038/s41598-022-14345-0 Text en © The Author(s) 2022 https://creativecommons.org/licenses/by/4.0/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 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 Al Saidi, Warda Sbiaa, Rachid Stabilizing magnetic skyrmions in constricted nanowires |
title | Stabilizing magnetic skyrmions in constricted nanowires |
title_full | Stabilizing magnetic skyrmions in constricted nanowires |
title_fullStr | Stabilizing magnetic skyrmions in constricted nanowires |
title_full_unstemmed | Stabilizing magnetic skyrmions in constricted nanowires |
title_short | Stabilizing magnetic skyrmions in constricted nanowires |
title_sort | stabilizing magnetic skyrmions in constricted nanowires |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9203817/ https://www.ncbi.nlm.nih.gov/pubmed/35710866 http://dx.doi.org/10.1038/s41598-022-14345-0 |
work_keys_str_mv | AT alsaidiwarda stabilizingmagneticskyrmionsinconstrictednanowires AT sbiaarachid stabilizingmagneticskyrmionsinconstrictednanowires |