Progress and challenges in magnetic skyrmionics

作     者：Haifeng Du Xiangrong Wang 杜海峰;王向荣

作者机构：Anhui Province Key Laboratory of Condensed Matter Physics at Extreme ConditionsHigh Magnetic Field LaboratoryHFIPSAnhuiChinese Academy of SciencesHefei 230031China Physics DepartmentThe Hong Kong University of Science and TechnologyClear Water BayKowloonHong KongChina 

出 版 物：《Chinese Physics B》 (中国物理B（英文版）)

年 卷 期：2022年第31卷第8期

页      面：73-81页

核心收录：

学科分类：07[理学] 070205[理学-凝聚态物理] 0702[理学-物理学] 

基　　金：financial support from the Strategic Priority Research Program of Chinese Academy of Sciences (Grant No. XDB33030100) the Equipment Development Project of Chinese Academy of Sciences (Grant No. YJKYYQ20180012) supported by the National Natural Science Foundation of China (Grant No. 11974296) Hong Kong RGC, China (Grant Nos. 16301518, 16301619, and 6302321) 

主　　题：magnetic skyrmions 

摘      要：Magnetic skyrmions are two-dimensional localized topological spin-structures characterized by the skyrmion number that measures the number of times of spins wrapping the Bloch sphere. Skyrmions behave like particles under an external stimulus and are promising information carriers. Skyrmions can exist as an isolated object as well as skyrmion condensates in crystal structures, helical/conical states, mazes or irregular stripy states with emergent electromagnetic fields. Thus,skyrmions provide a nice platform for studying fundamental physics, other than its applications in spintronics. In this perspective, we briefly review some recent progress in the field and present an outlook of the fundamental challenges in device applications.