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Direct imaging of magnetic field-driven transitions of skyrmion cluster states in FeGe nanodisks

文献类型：期刊论文

作者Zhao, Xuebing1; Jin, Chiming2,3; Wang, Chao1; Du, Haifeng2,3; Zang, Jiadong4,5; Tian, Mingliang2,3; Che, Renchao1; Zhang, Yuheng2,3
刊名PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
出版日期2016-05-03
卷号113期号:18页码:4918-4923
关键词Skyrmion Lorentz Tem Spintronics Fege
DOI10.1073/pnas.1600197113
文献子类Article
英文摘要Magnetic skyrmion is a nanosized magnetic whirl with nontrivial topology, which is highly relevant for applications on future memory devices. To enable the applications, theoretical efforts have been made to understand the dynamics of individual skyrmions in magnetic nanostructures. However, directly imaging the evolution of highly geometrically confined individual skyrmions is challenging. Here, we report the magnetic field-driven dynamics of individual skyrmions in FeGe nanodisks with diameters on the order of several skyrmion sizes by using Lorentz transmission electron microscopy. In contrast to the conventional skyrmion lattice in bulk, a series of skyrmion cluster states with different geometrical configurations and the field-driven cascading phase transitions are identified at temperatures far below the magnetic transition temperature. Furthermore, a dynamics, namely the intermittent jumps between the neighboring skyrmion cluster states, is found at elevated temperatures, at which the thermal energy competes with the energy barrier between the skyrmion cluster states.
WOS关键词CONFINED GEOMETRY ; COULOMB CLUSTERS ; DYNAMICS ; NANOSTRUCTURES ; MOTION ; VORTEX ; TRAP ; CORE ; MNSI
WOS研究方向Science & Technology - Other Topics
语种英语
WOS记录号WOS:000375395700024
资助机构Ministry of Science and Technology of China (973 Program)(2013CB932901) ; Ministry of Science and Technology of China (973 Program)(2013CB932901) ; Ministry of Science and Technology of China (973 Program)(2013CB932901) ; Ministry of Science and Technology of China (973 Program)(2013CB932901) ; National Natural Science Foundation of China(11274066 ; National Natural Science Foundation of China(11274066 ; National Natural Science Foundation of China(11274066 ; National Natural Science Foundation of China(11274066 ; Youth Innovation Promotion Association CAS(2015267) ; Youth Innovation Promotion Association CAS(2015267) ; Youth Innovation Promotion Association CAS(2015267) ; Youth Innovation Promotion Association CAS(2015267) ; program of Users with Excellence - Hefei Science Center of CAS ; program of Users with Excellence - Hefei Science Center of CAS ; program of Users with Excellence - Hefei Science Center of CAS ; program of Users with Excellence - Hefei Science Center of CAS ; CAS/SAFEA international partnership program for creative research teams of China ; CAS/SAFEA international partnership program for creative research teams of China ; CAS/SAFEA international partnership program for creative research teams of China ; CAS/SAFEA international partnership program for creative research teams of China ; Shanghai Pujiang Program ; Shanghai Pujiang Program ; Shanghai Pujiang Program ; Shanghai Pujiang Program ; "Shu Guang" project of Shanghai Municipal Education Commission ; "Shu Guang" project of Shanghai Municipal Education Commission ; "Shu Guang" project of Shanghai Municipal Education Commission ; "Shu Guang" project of Shanghai Municipal Education Commission ; Shanghai Education Development Foundation(09SG01) ; Shanghai Education Development Foundation(09SG01) ; Shanghai Education Development Foundation(09SG01) ; Shanghai Education Development Foundation(09SG01) ; 11474290 ; 11474290 ; 11474290 ; 11474290 ; 51172047 ; 51172047 ; 51172047 ; 51172047 ; 51102050 ; 51102050 ; 51102050 ; 51102050 ; 11374302 ; 11374302 ; 11374302 ; 11374302 ; U1432251 ; U1432251 ; U1432251 ; U1432251 ; U1330118) ; U1330118) ; U1330118) ; U1330118) ; Ministry of Science and Technology of China (973 Program)(2013CB932901) ; Ministry of Science and Technology of China (973 Program)(2013CB932901) ; Ministry of Science and Technology of China (973 Program)(2013CB932901) ; Ministry of Science and Technology of China (973 Program)(2013CB932901) ; National Natural Science Foundation of China(11274066 ; National Natural Science Foundation of China(11274066 ; National Natural Science Foundation of China(11274066 ; National Natural Science Foundation of China(11274066 ; Youth Innovation Promotion Association CAS(2015267) ; Youth Innovation Promotion Association CAS(2015267) ; Youth Innovation Promotion Association CAS(2015267) ; Youth Innovation Promotion Association CAS(2015267) ; program of Users with Excellence - Hefei Science Center of CAS ; program of Users with Excellence - Hefei Science Center of CAS ; program of Users with Excellence - Hefei Science Center of CAS ; program of Users with Excellence - Hefei Science Center of CAS ; CAS/SAFEA international partnership program for creative research teams of China ; CAS/SAFEA international partnership program for creative research teams of China ; CAS/SAFEA international partnership program for creative research teams of China ; CAS/SAFEA international partnership program for creative research teams of China ; Shanghai Pujiang Program ; Shanghai Pujiang Program ; Shanghai Pujiang Program ; Shanghai Pujiang Program ; "Shu Guang" project of Shanghai Municipal Education Commission ; "Shu Guang" project of Shanghai Municipal Education Commission ; "Shu Guang" project of Shanghai Municipal Education Commission ; "Shu Guang" project of Shanghai Municipal Education Commission ; Shanghai Education Development Foundation(09SG01) ; Shanghai Education Development Foundation(09SG01) ; Shanghai Education Development Foundation(09SG01) ; Shanghai Education Development Foundation(09SG01) ; 11474290 ; 11474290 ; 11474290 ; 11474290 ; 51172047 ; 51172047 ; 51172047 ; 51172047 ; 51102050 ; 51102050 ; 51102050 ; 51102050 ; 11374302 ; 11374302 ; 11374302 ; 11374302 ; U1432251 ; U1432251 ; U1432251 ; U1432251 ; U1330118) ; U1330118) ; U1330118) ; U1330118)
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/22401]  
专题合肥物质科学研究院_中科院强磁场科学中心
作者单位1.Fudan Univ, Dept Mat Sci, Collaborat Innovat Ctr Chem Energy Mat, Adv Mat Lab, Shanghai 200438, Peoples R China
2.Chinese Acad Sci, High Magnet Field Lab, Hefei 230031, Peoples R China
3.Nanjing Univ, Collaborat Innovat Ctr Adv Microstruct, Nanjing 210093, Jiangsu, Peoples R China
4.Univ New Hampshire, Dept Phys, Durham, NH 03824 USA
5.Univ New Hampshire, Mat Sci Program, Durham, NH 03824 USA
推荐引用方式
GB/T 7714		 Zhao, Xuebing,Jin, Chiming,Wang, Chao,et al. Direct imaging of magnetic field-driven transitions of skyrmion cluster states in FeGe nanodisks[J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,2016,113(18):4918-4923.
APA Zhao, Xuebing.,Jin, Chiming.,Wang, Chao.,Du, Haifeng.,Zang, Jiadong.,...&Zhang, Yuheng.(2016).Direct imaging of magnetic field-driven transitions of skyrmion cluster states in FeGe nanodisks.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,113(18),4918-4923.
MLA Zhao, Xuebing,et al."Direct imaging of magnetic field-driven transitions of skyrmion cluster states in FeGe nanodisks".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 113.18(2016):4918-4923.

入库方式： OAI收割

来源：合肥物质科学研究院

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