Periodically modulated skyrmion strings in Cu2OSeO3

doi:10.1038/s41535-021-00373-y

	Periodically modulated skyrmion strings in Cu2OSeO3
	Burn, D. M.1; Brearton, R.1,2; Ran, K. J.3,4 ; Zhang, S. L.3,4 ; van der Laan, G.1; Hesjedal, T.2
	2021-08-11
发表期刊	NPJ QUANTUM MATERIALS (IF:5.4[JCR-2023],5.6[5-Year])
EISSN	2397-4648
卷号	6 期号:1
DOI	10.1038/s41535-021-00373-y
摘要	Magnetic skyrmions are vortex-like spin textures, which are usually treated as two-dimensional objects. In their lattice state, they form well-ordered, hexagonal structures, which have been studied in great detail. To obtain a three-dimensional (3D) skyrmion crystal, these planes can be envisaged to be stacked up forming skyrmion strings in the third dimension. Here, we report the observation of a 3D skyrmion phase in Cu2OSeO3 by carrying out reciprocal space mapping in resonant elastic x-ray scattering. We observe regions in the magnetic field-cooling phase diagram in which the skyrmion phase apparently coexists with the conical phase. However, such a coexistence is forbidden due to symmetry arguments. Instead, the skyrmion strings themselves are periodically modulated along their axes, as confirmed by micromagnetic simulations. The periodic modulation is in fact a necessary consequence of the evolution of the skyrmion phase out of the conical state and should therefore be a universal property of skyrmion strings in chiral helimagnets.
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收录类别	SCIE
语种	英语
WOS研究方向	Materials Science ; Physics
WOS类目	Materials Science, Multidisciplinary ; Quantum Science & Technology ; Physics, Applied ; Physics, Condensed Matter
WOS记录号	WOS:000684224400001
出版者	NATURE PORTFOLIO
原始文献类型	Article
引用统计	正在获取...
文献类型	期刊论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/127924
专题	物质科学与技术学院_PI研究组_张石磊组物质科学与技术学院_公共科研平台_拓扑物理实验室
通讯作者	van der Laan, G.; Hesjedal, T.
作者单位	1.Diamond Light Source, Didcot, Oxon, England; 2.Univ Oxford, Dept Phys, Clarendon Lab, Oxford, England; 3.ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai, Peoples R China; 4.ShanghaiTech Univ, ShanghaiTech Lab Topol Phys, Shanghai, Peoples R China
推荐引用方式 GB/T 7714	Burn, D. M.,Brearton, R.,Ran, K. J.,et al. Periodically modulated skyrmion strings in Cu2OSeO3[J]. NPJ QUANTUM MATERIALS,2021,6(1).
APA	Burn, D. M.,Brearton, R.,Ran, K. J.,Zhang, S. L.,van der Laan, G.,&Hesjedal, T..(2021).Periodically modulated skyrmion strings in Cu2OSeO3.NPJ QUANTUM MATERIALS,6(1).
MLA	Burn, D. M.,et al."Periodically modulated skyrmion strings in Cu2OSeO3".NPJ QUANTUM MATERIALS 6.1(2021).