Oriented 3D Magnetic Biskyrmions in MnNiGa Bulk Crystals

doi:10.1002/adma.201900264

	Oriented 3D Magnetic Biskyrmions in MnNiGa Bulk Crystals
	Li, Xiyang 1,2; Zhang, Shilei3,11 ; Li, Hang 1,2; Venero, Diego Alba 4; White, Jonathan S.5; Cubitt, Robert 6; Huang, Qingzhen 7; Chen, Jie 8; He, Lunhua 1,9; van der Laan, Gerrit 10; Wang, Wenhong 1,2,9; Hesjedal, Thorsten 3; Wang, Fangwei 1,2,9
	2019-04-25
发表期刊	ADVANCED MATERIALS
ISSN	0935-9648
卷号	31 期号:17
发表状态	已发表
DOI	10.1002/adma.201900264
摘要	A biskyrmion consists of two bound, topologically stable, skyrmion spin textures. These coffee-bean-shaped objects are observed in real space in thin plates using Lorentz transmission electron microscopy (LTEM). From LTEM imaging alone, it is not clear whether biskyrmions are surface-confined objects, or, analogous to skyrmions in noncentrosymmetric helimagnets, 3D tube-like structures in a bulk sample. Here, the biskyrmion form factor is investigated in single- and polycrystalline-MnNiGa samples using small-angle neutron scattering. It is found that biskyrmions are not long-range ordered, not even in single crystals. Surprisingly all of the disordered biskyrmions have their in-plane symmetry axis aligned along certain directions, governed by the magnetocrystalline anisotropy. This anisotropic nature of biskyrmions may be further exploited to encode information.
关键词	biskyrmions disorder MnNiGa small-angle neutron scattering
收录类别	SCI ; SCIE
语种	英语
资助项目	Newton-China fund[RB1620128]
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
WOS类目	Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter
WOS记录号	WOS:000465600000023
出版者	WILEY-V C H VERLAG GMBH
WOS关键词	REAL-SPACE OBSERVATION ; SKYRMION LATTICE ; TEMPERATURE
原始文献类型	Article
引用统计
文献类型	期刊论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/40834
专题	物质科学与技术学院物质科学与技术学院_PI研究组_张石磊组
通讯作者	Wang, Fangwei
作者单位	1.Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Inst Phys, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Sch Phys Sci, Beijing 101408, Peoples R China 3.Univ Oxford, Clarendon Lab, Dept Phys, Oxford OX1 3PU, England 4.STFC Rutherford Appleton Lab, ISIS, Didcot OX11 0QX, Oxon, England 5.Paul Scherrer Inst, Lab Neutron Scattering & Imaging, CH-5232 Villigen, Switzerland 6.Inst Laue Langevin, 6 Rue Jules Horowitz, F-38042 Grenoble, France 7.NIST, NIST Ctr Neutron Res, 100 Bur Dr, Gaithersburg, MD 20899 USA 8.China Spallat Neutron Source, Dongguan 523808, Peoples R China 9.Songshan Lake Mat Lab, Dongguan 523808, Peoples R China 10.Diamond Light Source, Magnet Spect Grp, Didcot OX11 0DE, Oxon, England 11.ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 201210, Peoples R China
推荐引用方式 GB/T 7714	Li, Xiyang,Zhang, Shilei,Li, Hang,et al. Oriented 3D Magnetic Biskyrmions in MnNiGa Bulk Crystals[J]. ADVANCED MATERIALS,2019,31(17).
APA	Li, Xiyang.,Zhang, Shilei.,Li, Hang.,Venero, Diego Alba.,White, Jonathan S..,...&Wang, Fangwei.(2019).Oriented 3D Magnetic Biskyrmions in MnNiGa Bulk Crystals.ADVANCED MATERIALS,31(17).
MLA	Li, Xiyang,et al."Oriented 3D Magnetic Biskyrmions in MnNiGa Bulk Crystals".ADVANCED MATERIALS 31.17(2019).