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Chin. Phys. B, 2022, Vol. 31(8): 087507    DOI: 10.1088/1674-1056/ac754f
Special Issue: TOPICAL REVIEW — Celebrating 30 Years of Chinese Physics B
TOPICAL REVIEW—Celebrating 30 Years of Chinese Physics B Prev   Next  

Progress and challenges in magnetic skyrmionics

Haifeng Du(杜海峰)1 and Xiangrong Wang(王向荣)2,†
1 Anhui Province Key Laboratory of Condensed Matter Physics at Extreme Conditions, High Magnetic Field Laboratory, HFIPS, Anhui, Chinese Academy of Sciences, Hefei 230031, China;
2 Physics Department, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
Abstract  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.
Keywords:  magnetic skyrmions  
Received:  14 April 2022      Revised:  31 May 2022      Accepted manuscript online:  02 June 2022
PACS:  75.78.-n (Magnetization dynamics)  
Fund: H. D. acknowledges the financial support from the Strategic Priority Research Program of Chinese Academy of Sciences (Grant No. XDB33030100) and the Equipment Development Project of Chinese Academy of Sciences (Grant No. YJKYYQ20180012). X. R. W. is supported by the National Natural Science Foundation of China (Grant No. 11974296) and Hong Kong RGC, China (Grant Nos. 16301518, 16301619, and 6302321).
Corresponding Authors:  Xiangrong Wang     E-mail:  phxwan@ust.hk

Cite this article: 

Haifeng Du(杜海峰) and Xiangrong Wang(王向荣) Progress and challenges in magnetic skyrmionics 2022 Chin. Phys. B 31 087507

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