Characteristics and Applications of Current-Driven Magnetic Skyrmion Strings

被引:0
|
作者
金兆年 [1 ]
宋敏航 [2 ]
方贺男 [2 ]
陈琳 [2 ]
陈将伟 [2 ]
陶志阔 [2 ]
机构
[1] Bell Honors School,Nanjing University of Posts and Telecommunications
[2] College of Electronic and Optical Engineering & College of Microelectronics,Nanjing University of Posts and Telecommunications
基金
中国国家自然科学基金;
关键词
D O I
暂无
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
We investigate the current-driven characteristics and applications of magnetic skyrmion strings by micromagnetic simulations. Under the spin-polarized driving current, the skyrmion string presents different moving trajectories in different layers due to the skyrmion Hall effect. Moreover, a series of skyrmion bobbers can be generated with a notch defect placed in the surface and the skyrmion bobbers will follow the skyrmion string. By varying the current density, the bobbers’ characteristics such as number and velocity can be manipulated, which inspires us to propose a skyrmion string-based diode. In addition, an AND logic gate and an OR logic gate in the identical scheme based on the skyrmion string are proposed. AND logic and OR logic behaviors can be realized by varying the driving current densities. Our findings will contribute to further research of magnetic skyrmion strings for data storage, processing, and energy-efficient computing.
引用
收藏
页码:97 / 107
页数:11
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