Stochastic hexagonal injectors in artificial spin ice

Abstract

Artificial spin ice (ASI) systems have emerged as powerful platforms for exploring the fundamental aspects of magnetic frustration and topological phenomena in condensed matter physics. In this study, we investigate the bountiful effects that result from introducing hexagonal magnetic defects into an ASI lattice. The stochastic stabilisation of a plethora of metastable states in the hexagonal defects are explored, as well as harnessing the defect magnetisation state for the selective injection of emergent monopoles of different polarities and proximities within the lattice. We demonstrate a mechanism for tailoring the ASI behaviour using the magnetic state of the defect, which is of interest to applications including magnetic memory devices and spin-based logic.

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Item Type:	Article
Authors/Creators:	Puttock, R. https://orcid.org/0000-0002-8393-6706 Fondet, A. https://orcid.org/0009-0004-0646-7338 Andersen, I.M. Rosamond, M.C. Fernández Scarioni, A. https://orcid.org/0000-0003-2244-2582 Schumacher, H.W. Snoeck, E. https://orcid.org/0000-0002-1735-0942 Gatel, C. https://orcid.org/0000-0001-5549-7008 Kazakova, O. https://orcid.org/0000-0002-8473-2414
Copyright, Publisher and Additional Information:	© Crown 2024. 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/.
Dates:	Published: 1 October 2024 Published (online): 1 October 2024 Accepted: 14 August 2024
Institution:	The University of Leeds
Academic Units:	The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Electronic & Electrical Engineering (Leeds) > Pollard Institute (Leeds)
Depositing User:	Symplectic Publications
Date Deposited:	18 Oct 2024 10:20
Last Modified:	18 Oct 2024 10:24
Published Version:	https://www.nature.com/articles/s43246-024-00614-0
Status:	Published
Publisher:	Springer
Identification Number:	10.1038/s43246-024-00614-0
Open Archives Initiative ID (OAI ID):	oai:eprints.whiterose.ac.uk:218540

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Stochastic hexagonal injectors in artificial spin ice

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