Direct Imaging of a Zero-Field Target Skyrmion and Its Polarity Switch in a Chiral Magnetic Nanodisk

doi:10.1103/PhysRevLett.119.197205

CORC > 合肥物质科学研究院 > 中国科学院合肥物质科学研究院 > 中科院强磁场科学中心

	Direct Imaging of a Zero-Field Target Skyrmion and Its Polarity Switch in a Chiral Magnetic Nanodisk
	Zheng, Fengshan 4,5; Li, Hang 6; Wang, Shasha 1,7,8; Song, Dongsheng 2,3; Jin, Chiming 1,7,8; Wei, Wenshen 1,7,8; Kovacs, Andras 4,5; Zang, Jiadong 6; Tian, Mingliang 1,7,8; Zhang, Yuheng 1,7,8
刊名	PHYSICAL REVIEW LETTERS
	2017-11-10
卷号	119 期号:19 页码:6
ISSN号	0031-9007
DOI	10.1103/PhysRevLett.119.197205
英文摘要	A target Skyrmion is a flux-closed spin texture that has twofold degeneracy and is promising as a binary state in next generation universal memories. Although its formation in nanopatterned chiral magnets has been predicted, its observation has remained challenging. Here, we use off-axis electron holography to record images of target Skyrmions in a 160-nm-diameter nanodisk of the chiral magnet FeGe. We compare experimental measurements with numerical simulations, demonstrate switching between two stable degenerate target Skyrmion ground states that have opposite polarities and rotation senses, and discuss the observed switching mechanism.
资助项目	National Key R&D Program of China[2017YFA0303201] ; Key Research Program of Frontier Sciences, CAS[QYZDB-SSW-SLH009] ; Key Research Program of Chinese Academy of Sciences[KJZD-SW-M01] ; Natural Science Foundation of China[51622105] ; Natural Science Foundation of China[11474290] ; Youth Innovation Promotion Association CAS[2015267] ; European Union through Marie Curie Initial Training Network SIMDALEE2 ; European Research Council Seventh Framework Programme/ ERC Grant[320832] ; U.S. Department of Energy (DOE), Office of Science, Basic Energy Sciences (BES)[DE-SC0016424]
WOS关键词	LATTICE
WOS研究方向	Physics
语种	英语
出版者	AMER PHYSICAL SOC
WOS记录号	WOS:000414853700002
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/35924]
专题	合肥物质科学研究院_中科院强磁场科学中心
通讯作者	Zang, Jiadong; Du, Haifeng
作者单位	1.Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China 2.Tsinghua Univ, State Key Lab New Ceram & Fine Proc, Sch Mat Sci & Engn, Beijing 100084, Peoples R China 3.Tsinghua Univ, Natl Ctr Electron Microscopy Beijing, Key Lab Adv Mat MOE, Beijing 100084, Peoples R China 4.Forschungszentrum Julich, Ernst Ruska Ctr Microscopy & Spect Electrons, D-52425 Julich, Germany 5.Forschungszentrum Julich, Peter Grunberg Inst, D-52425 Julich, Germany 6.Univ New Hampshire, Dept Phys, Durham, NH 03824 USA 7.Nanjing Univ, Collaborat Innovat Ctr Adv Microstruct, Nanjing 210093, Jiangsu, Peoples R China 8.Chinese Acad Sci, Anhui Key Lab Condensed Matter Phys Extreme, High Field Magnet Lab, Hefei 230026, Anhui, Peoples R China
推荐引用方式 GB/T 7714	Zheng, Fengshan,Li, Hang,Wang, Shasha,et al. Direct Imaging of a Zero-Field Target Skyrmion and Its Polarity Switch in a Chiral Magnetic Nanodisk[J]. PHYSICAL REVIEW LETTERS,2017,119(19):6.
APA	Zheng, Fengshan.,Li, Hang.,Wang, Shasha.,Song, Dongsheng.,Jin, Chiming.,...&Dunin-Borkowski, Rafal E..(2017).Direct Imaging of a Zero-Field Target Skyrmion and Its Polarity Switch in a Chiral Magnetic Nanodisk.PHYSICAL REVIEW LETTERS,119(19),6.
MLA	Zheng, Fengshan,et al."Direct Imaging of a Zero-Field Target Skyrmion and Its Polarity Switch in a Chiral Magnetic Nanodisk".PHYSICAL REVIEW LETTERS 119.19(2017):6.