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Real-Space Imaging of Intrinsic Symmetry-Breaking Spin Textures in a Kagome Lattice

文献类型：期刊论文

作者Xie, Caihong1,7; Deng, Yongcheng2; Zhang, Dong2; Li, Junbo1; Xiong, Yimin3,4,6; Ma, Mangyuan5; Ma, Fusheng5; Tong, Wei1; Wang, Jihao1; Meng, Wenjie1
刊名ADVANCED SCIENCE
出版日期2024-08-19
关键词Fe3Sn2 kagome magnets Magnetic force microscopy phase transition spin reorientation
DOI10.1002/advs.202404088
通讯作者Feng, Qiyuan(fqyuan@hmfl.ac.cn) ; Lu, Qingyou(qxl@ustc.edu.cn)
英文摘要The electronic orders in kagome materials have emerged as a fertile platform for studying exotic quantum states, and their intertwining with the unique kagome lattice geometry remains elusive. While various unconventional charge orders with broken symmetry is observed, the influence of kagome symmetry on magnetic order has so far not been directly observed. Here, using a high-resolution magnetic force microscopy, it is, for the first time, observed a new lattice form of noncollinear spin textures in the kagome ferromagnet in zero magnetic field. Under the influence of the sixfold rotational symmetry of the kagome lattice, the spin textures are hexagonal in shape and can further form a honeycomb lattice structure. Subsequent thermal cycling measurements reveal that these spin textures transform into a non-uniform in-plane ferromagnetic ground state at low temperatures and can fully rebuild at elevated temperatures, showing a strong second-order phase transition feature. Moreover, some out-of-plane magnetic moments persist at low temperatures, supporting the Kane-Mele scenario in explaining the emergence of the Dirac gap. The observations establish that the electronic properties, including both charge and spin orders, are strongly coupled with the kagome lattices. Using ultra-high-resolution magnetic force microscopy, a novel type of periodic and regular hexagonal spin texture is revealed in the frustrated kagome Fe3Sn2 magnet. The results suggest that the kagome lattice can strongly modulate the magnetic order over a much larger scale and with more regular symmetries than previously thought. image
资助项目National Natural Science Foundation of China[51627901] ; National Natural Science Foundation of China[11374278] ; National Natural Science Foundation of China[11574281] ; National Natural Science Foundation of China[11574324] ; National Natural Science Foundation of China[11704384] ; National Natural Science Foundation of China[U1432251] ; National Natural Science Foundation of China[U1632160] ; National Natural Science Foundation of China[11474263] ; Chinese Academy of Sciences Scientific Research Equipment[YZ201628] ; Innovation Program for Quantum Science and Technology[2021ZD0302802] ; Maintenance and Renovation Project for CAS Major Scientific and Technological Infrastructure[DSS-WXGZ-2019-0011] ; Maintenance and Renovation Project for CAS Major Scientific and Technological Infrastructure[DSS-WXGZ-2021-0006]
WOS研究方向Chemistry ; Science & Technology - Other Topics ; Materials Science
语种英语
WOS记录号WOS:001293130200001
出版者WILEY
资助机构National Natural Science Foundation of China ; Chinese Academy of Sciences Scientific Research Equipment ; Innovation Program for Quantum Science and Technology ; Maintenance and Renovation Project for CAS Major Scientific and Technological Infrastructure
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/136055]  
专题中国科学院合肥物质科学研究院
通讯作者Feng, Qiyuan; Lu, Qingyou
作者单位1.Chinese Acad Sci, Anhui Prov Key Lab Low Energy Quantum Mat & Device, High Magnet Field Lab, HFIPS, Hefei 230031, Peoples R China
2.Chinese Acad Sci, Inst Semicond, State Key Lab Superlatt & Microstruct, Beijing 100083, Peoples R China
3.Anhui Univ, Sch Phys & Optoelect Engn, Dept Phys, Hefei 230039, Peoples R China
4.Hefei Natl Lab, Hefei 230094, Peoples R China
5.Nanjing Normal Univ, Sch Phys & Technol, Nanjing 210046, Peoples R China
6.Anhui Univ, Anhui Prov Key Lab Magnet Funct Mat & Devices, Hefei 230039, Peoples R China
7.Univ Sci & Technol China, Hefei 230026, Peoples R China
推荐引用方式
GB/T 7714		 Xie, Caihong,Deng, Yongcheng,Zhang, Dong,et al. Real-Space Imaging of Intrinsic Symmetry-Breaking Spin Textures in a Kagome Lattice[J]. ADVANCED SCIENCE,2024.
APA Xie, Caihong.,Deng, Yongcheng.,Zhang, Dong.,Li, Junbo.,Xiong, Yimin.,...&Lu, Qingyou.(2024).Real-Space Imaging of Intrinsic Symmetry-Breaking Spin Textures in a Kagome Lattice.ADVANCED SCIENCE.
MLA Xie, Caihong,et al."Real-Space Imaging of Intrinsic Symmetry-Breaking Spin Textures in a Kagome Lattice".ADVANCED SCIENCE (2024).

入库方式： OAI收割

来源：合肥物质科学研究院

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