{"title":"Skyrmion deformation under the antiferromagnetic system","authors":"Xiuzhu Wang, Zehan Chen, Qiming Shao","doi":"10.1063/5.0253620","DOIUrl":null,"url":null,"abstract":"A magnetic skyrmion exhibits topological protection property, making it a highly promising candidate as an information carrier in spintronic devices. However, this information carrier may face deformation issues when driven by high current densities, causing the unstable message transmission. In this work, we explore the skyrmion deformation under different magnetic systems, including ferromagnetic, ferrimagnetic, and antiferromagnetic (AFM) systems. We conduct micromagnetic simulations and provide a theoretical analysis of AFM skyrmion deformation, where the skyrmion demonstrates the lowest susceptibility to deformation. We derive a canting term based on the Thiele equation, pointing out an essential term that explains the AFM deformation depression reason. This finding also indicates that the AFM system offers superior stability for skyrmion, making it a promising choice for better option for skyrmion-based spintronics devices.","PeriodicalId":8094,"journal":{"name":"Applied Physics Letters","volume":"72 1","pages":""},"PeriodicalIF":3.6000,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Applied Physics Letters","FirstCategoryId":"101","ListUrlMain":"https://doi.org/10.1063/5.0253620","RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"PHYSICS, APPLIED","Score":null,"Total":0}
引用次数: 0
Abstract
A magnetic skyrmion exhibits topological protection property, making it a highly promising candidate as an information carrier in spintronic devices. However, this information carrier may face deformation issues when driven by high current densities, causing the unstable message transmission. In this work, we explore the skyrmion deformation under different magnetic systems, including ferromagnetic, ferrimagnetic, and antiferromagnetic (AFM) systems. We conduct micromagnetic simulations and provide a theoretical analysis of AFM skyrmion deformation, where the skyrmion demonstrates the lowest susceptibility to deformation. We derive a canting term based on the Thiele equation, pointing out an essential term that explains the AFM deformation depression reason. This finding also indicates that the AFM system offers superior stability for skyrmion, making it a promising choice for better option for skyrmion-based spintronics devices.
期刊介绍：
Applied Physics Letters (APL) features concise, up-to-date reports on significant new findings in applied physics. Emphasizing rapid dissemination of key data and new physical insights, APL offers prompt publication of new experimental and theoretical papers reporting applications of physics phenomena to all branches of science, engineering, and modern technology.
In addition to regular articles, the journal also publishes invited Fast Track, Perspectives, and in-depth Editorials which report on cutting-edge areas in applied physics.
APL Perspectives are forward-looking invited letters which highlight recent developments or discoveries. Emphasis is placed on very recent developments, potentially disruptive technologies, open questions and possible solutions. They also include a mini-roadmap detailing where the community should direct efforts in order for the phenomena to be viable for application and the challenges associated with meeting that performance threshold. Perspectives are characterized by personal viewpoints and opinions of recognized experts in the field.
Fast Track articles are invited original research articles that report results that are particularly novel and important or provide a significant advancement in an emerging field. Because of the urgency and scientific importance of the work, the peer review process is accelerated. If, during the review process, it becomes apparent that the paper does not meet the Fast Track criterion, it is returned to a normal track.
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