Dynamic Control of Topological Defects in Artificial Colloidal Ice

We demonstrate the use of an external field to stabilize and control defect lines connecting topological monopoles in spin ice. For definiteness we perform Brownian dynamics simulations with realistic units mimicking experimentally realized artificial colloidal spin ice systems, and show how defect...

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Autores principales: Libál, A., Nisoli, C., Reichhardt, C., Reichhardt, C. J. Olson
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2017
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5428472/
https://www.ncbi.nlm.nih.gov/pubmed/28381863
http://dx.doi.org/10.1038/s41598-017-00452-w
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author Libál, A.
Nisoli, C.
Reichhardt, C.
Reichhardt, C. J. Olson
author_facet Libál, A.
Nisoli, C.
Reichhardt, C.
Reichhardt, C. J. Olson
author_sort Libál, A.
collection PubMed
description We demonstrate the use of an external field to stabilize and control defect lines connecting topological monopoles in spin ice. For definiteness we perform Brownian dynamics simulations with realistic units mimicking experimentally realized artificial colloidal spin ice systems, and show how defect lines can grow, shrink or move under the action of direct and alternating fields. Asymmetric alternating biasing forces can cause the defect line to ratchet in either direction, making it possible to precisely position the line at a desired location. Such manipulation could be employed to achieve mobile information storage in these metamaterials.
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spelling pubmed-54284722017-05-15 Dynamic Control of Topological Defects in Artificial Colloidal Ice Libál, A. Nisoli, C. Reichhardt, C. Reichhardt, C. J. Olson Sci Rep Article We demonstrate the use of an external field to stabilize and control defect lines connecting topological monopoles in spin ice. For definiteness we perform Brownian dynamics simulations with realistic units mimicking experimentally realized artificial colloidal spin ice systems, and show how defect lines can grow, shrink or move under the action of direct and alternating fields. Asymmetric alternating biasing forces can cause the defect line to ratchet in either direction, making it possible to precisely position the line at a desired location. Such manipulation could be employed to achieve mobile information storage in these metamaterials. Nature Publishing Group UK 2017-04-05 /pmc/articles/PMC5428472/ /pubmed/28381863 http://dx.doi.org/10.1038/s41598-017-00452-w Text en © The Author(s) 2017 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
Libál, A.
Nisoli, C.
Reichhardt, C.
Reichhardt, C. J. Olson
Dynamic Control of Topological Defects in Artificial Colloidal Ice
title Dynamic Control of Topological Defects in Artificial Colloidal Ice
title_full Dynamic Control of Topological Defects in Artificial Colloidal Ice
title_fullStr Dynamic Control of Topological Defects in Artificial Colloidal Ice
title_full_unstemmed Dynamic Control of Topological Defects in Artificial Colloidal Ice
title_short Dynamic Control of Topological Defects in Artificial Colloidal Ice
title_sort dynamic control of topological defects in artificial colloidal ice
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5428472/
https://www.ncbi.nlm.nih.gov/pubmed/28381863
http://dx.doi.org/10.1038/s41598-017-00452-w
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