Interaction of a Magnetic Skyrmionium With an Engineered Defect

IF 1.6 4区 物理与天体物理 Q3 PHYSICS, APPLIED
Aykut Can Önel, Mahmut Çimen, A. Emre Yarimbiyik, Mustafa Arikan, Bulat Rameev
{"title":"Interaction of a Magnetic Skyrmionium With an Engineered Defect","authors":"Aykut Can Önel,&nbsp;Mahmut Çimen,&nbsp;A. Emre Yarimbiyik,&nbsp;Mustafa Arikan,&nbsp;Bulat Rameev","doi":"10.1007/s10948-023-06603-7","DOIUrl":null,"url":null,"abstract":"<div><p>High mobility and the absence of the skyrmion Hall effect are demonstrated in a magnetic skyrmionium, which consists of two skyrmions with opposite topological charges. Despite these advantages, material defects have the potential to alter the skyrmionium’s dynamics. In this report, we investigate the motion of a skyrmionium driven by a current on a racetrack containing an engineered cylindrical defect. Our model demonstrates three possible outcomes of the interaction between the skyrmionium and the defect, depending on the applied current density: pinning, transformation, and transmission. Pinning takes place when the driving force generated by the current is inadequate to counteract the repulsive force at the defect boundary, causing the skyrmionium to become entrapped. Transformation happens inside the defect, where the skyrmionium might convert into a skyrmion due to the higher effective field resulting from the change in film thickness. Transmission takes place when the force exerted by the applied current significantly exceeds the repulsive force at the defect boundary, leading to minimal impact on the skyrmionium motion. These results offer significant understanding of skyrmionium behavior when interacting with engineered defects and present potential implications for the development of novel skyrmionic devices.</p></div>","PeriodicalId":669,"journal":{"name":"Journal of Superconductivity and Novel Magnetism","volume":"36 6","pages":"1533 - 1539"},"PeriodicalIF":1.6000,"publicationDate":"2023-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Superconductivity and Novel Magnetism","FirstCategoryId":"101","ListUrlMain":"https://link.springer.com/article/10.1007/s10948-023-06603-7","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"PHYSICS, APPLIED","Score":null,"Total":0}
引用次数: 0

Abstract

High mobility and the absence of the skyrmion Hall effect are demonstrated in a magnetic skyrmionium, which consists of two skyrmions with opposite topological charges. Despite these advantages, material defects have the potential to alter the skyrmionium’s dynamics. In this report, we investigate the motion of a skyrmionium driven by a current on a racetrack containing an engineered cylindrical defect. Our model demonstrates three possible outcomes of the interaction between the skyrmionium and the defect, depending on the applied current density: pinning, transformation, and transmission. Pinning takes place when the driving force generated by the current is inadequate to counteract the repulsive force at the defect boundary, causing the skyrmionium to become entrapped. Transformation happens inside the defect, where the skyrmionium might convert into a skyrmion due to the higher effective field resulting from the change in film thickness. Transmission takes place when the force exerted by the applied current significantly exceeds the repulsive force at the defect boundary, leading to minimal impact on the skyrmionium motion. These results offer significant understanding of skyrmionium behavior when interacting with engineered defects and present potential implications for the development of novel skyrmionic devices.

Abstract Image

磁性锶与工程缺陷的相互作用
在由两个拓扑电荷相反的skyrmionium组成的磁性skyrmionium中,证明了高迁移率和没有skyrmionium霍尔效应。尽管有这些优点,但材料缺陷有可能改变skyrmionium的动力学。在本报告中,我们研究了在含有工程圆柱形缺陷的跑道上由电流驱动的skyrmionium的运动。我们的模型展示了skyrmionium与缺陷之间相互作用的三种可能结果,这取决于施加的电流密度:钉住、转换和传输。当电流产生的驱动力不足以抵消缺陷边界处的排斥力时,就会发生钉住,导致skyrmionium被困住。相变发生在缺陷内部,由于薄膜厚度的变化产生了更高的有效场,因此可以将skyrmionium转化为skyrmiion。当施加的电流施加的力明显超过缺陷边界处的排斥力时,就会发生传输,导致对skyrmionium运动的影响最小。这些结果对skyrmionium与工程缺陷相互作用时的行为提供了重要的理解,并为新型skyrmionium器件的开发提供了潜在的影响。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 求助全文
来源期刊
Journal of Superconductivity and Novel Magnetism
Journal of Superconductivity and Novel Magnetism 物理-物理:凝聚态物理
CiteScore
3.70
自引率
11.10%
发文量
342
审稿时长
3.5 months
期刊介绍: The Journal of Superconductivity and Novel Magnetism serves as the international forum for the most current research and ideas in these fields. This highly acclaimed journal publishes peer-reviewed original papers, conference proceedings and invited review articles that examine all aspects of the science and technology of superconductivity, including new materials, new mechanisms, basic and technological properties, new phenomena, and small- and large-scale applications. Novel magnetism, which is expanding rapidly, is also featured in the journal. The journal focuses on such areas as spintronics, magnetic semiconductors, properties of magnetic multilayers, magnetoresistive materials and structures, magnetic oxides, etc. Novel superconducting and magnetic materials are complex compounds, and the journal publishes articles related to all aspects their study, such as sample preparation, spectroscopy and transport properties as well as various applications.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信