Polarity-controllable magnetic skyrmion filter

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外文摘要：The skyrmion generator is one of the indispensable components for the future functional skyrmion devices,but the pro-cess of generating skyrmion cannot avoid mixing with other magnetic textures,such as skyrmionium and nested skyrmion bags.These mixed magnetic textures will inevitably lead to the blockage of skyrmion transport and even the distortion of data information.Therefore,the design of an efficient skyrmion filter is of great significance for the development of skyrmion-based spintronic devices.In this work,a skyrmion filter scheme is proposed,and the high-efficiency filtering function is demonstrated by micromagnetic simulations.The results show that the filtering effect of the scheme depends on the structure geometry and the spin current density that drives the skyrmion.Based on this scheme,the polarity of the filtered skyrmion can be controlled by switching the magnetization state at the output end,and the"cloning"of the skyrmion can be realized by geometric optimization of the structure.We believe that in the near future,the skyrmion filter will become one of the important components of skyrmion-based spintronic devices in the future.

外文关键词：

spintronicsskyrmionsskyrmion filterskyrmion polarityskyrmion clone

作者：

艾啸林、李慧婷、张雪枫、李昌锋、沈帝虎、马晓萍、朴红光

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作者单位：

Hubei Engineering Research Center of Weak Magnetic-Field Detection,College of Science,China Three Gorges University,Yichang 443002,China

Department of Physics,College of Science,Yanbian University,Yanji 133002,China

基金：

National Natural Science Foundation of ChinaScientific and Technological Development Plan of Jilin Province,ChinaScience and Technology Research and Planning Project of Jilin Provincial Department of EducationApplied Foundation Research Project(Talent Funding Project)of Yanbian University

项目编号：

1236402020240101295JCJJKH20230611KJydkj202241

出版年：

2024

DOI：

10.1088/1674-1056/ad6421

中国物理B(英文版)

中国物理学会和中国科学院物理研究所

中国物理B(英文版)

CSTPCDEI

影响因子：0.995

ISSN：1674-1056

年,卷(期)：2024.33(10)