Imaging real-space flat band localization in kagome magnet FeSn

doi:10.1038/s43246-022-00328-1

	Imaging real-space flat band localization in kagome magnet FeSn
	Multer, Daniel 1; Yin, Jia-Xin 2; Hossain, Md. Shafayat 1; Yang, Xian 1; Sales, Brian C.3; Miao, Hu 3; Meier, William R.4; Jiang, Yu-Xiao 1; Xie, Yaofeng 5; Dai, Pengcheng 5; Liu, Jianpeng6 ; Deng, Hanbin 2; Lei, Hechang 7; Lian, Biao 1; Zahid Hasan, M.1,8,9,10
	2023-12
发表期刊	COMMUNICATIONS MATERIALS (IF:7.5[JCR-2023],7.9[5-Year])
EISSN	2662-4443
卷号	4 期号:1
DOI	10.1038/s43246-022-00328-1
摘要	Kagome lattices host flat bands due to their frustrated lattice geometry, which leads to destructive quantum interference of electron wave functions. Here, we report imaging of the kagome flat band localization in real-space using scanning tunneling microscopy. We identify both the Fe3Sn kagome lattice layer and the Sn2 honeycomb layer with atomic resolution in kagome antiferromagnet FeSn. On the Fe3Sn lattice, at the flat band energy determined by the angle resolved photoemission spectroscopy, tunneling spectroscopy detects an unusual state localized uniquely at the Fe kagome lattice network. We further show that the vectorial in-plane magnetic field manipulates the spatial anisotropy of the localization state within each kagome unit cell. Our results are consistent with the real-space flat band localization in the magnetic kagome lattice. We further discuss the magnetic tuning of flat band localization under the spin–orbit coupled magnetic kagome lattice model. © 2022, The Author(s).
关键词	Binary alloys Iron alloys Photoelectron spectroscopy Scanning tunneling microscopy Wave functions Atomic-resolution Electron wave functions Flat band Honeycomb layers Kagome lattice Lattice geometry Lattice layers Localisation Quantum interference Real-space
URL	查看原文
收录类别	EI ; SCOPUS
语种	英语
出版者	Springer Nature
EI入藏号	20230913641147
EI主题词	Tin alloys
EI分类号	545.2 Iron Alloys ; 546.2 Tin and Alloys ; 921 Mathematics
原始文献类型	Journal article (JA)
文献类型	期刊论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/284245
专题	物质科学与技术学院_PI研究组_刘健鹏组
通讯作者	Yin, Jia-Xin; Lian, Biao; Zahid Hasan, M.
作者单位	1.Department of Physics, Princeton University, Princeton; NJ; 08544, United States; 2.Department of Physics, Southern University of Science and Technology, Guangdong, Shenzhen; 518055, China; 3.Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge; TN; 37830, United States; 4.Materials Science & Engineering Department, University of Tennessee Knoxville, Knoxville; TN; 37921, United States; 5.Department of Physics and Astronomy, Rice Center for Quantum Materials, Rice University, Houston; TX; 77005, United States; 6.School of Physical Science and Technology, ShanghaiTech University, Shanghai; 201210, China; 7.Department of Physics and Beijing Key Laboratory of Opto-electronic Functional Materials & Micro-nano Devices, Renmin University of China, Beijing; 100086, China; 8.Lawrence Berkeley National Laboratory, Berkeley; CA; 94720, United States; 9.Princeton Institute for the Science and Technology of Materials, Princeton University, Princeton; NJ; 08544, United States; 10.Quantum Science Center, Oak Ridge; TN; 37830, United States
推荐引用方式 GB/T 7714	Multer, Daniel,Yin, Jia-Xin,Hossain, Md. Shafayat,et al. Imaging real-space flat band localization in kagome magnet FeSn[J]. COMMUNICATIONS MATERIALS,2023,4(1).
APA	Multer, Daniel.,Yin, Jia-Xin.,Hossain, Md. Shafayat.,Yang, Xian.,Sales, Brian C..,...&Zahid Hasan, M..(2023).Imaging real-space flat band localization in kagome magnet FeSn.COMMUNICATIONS MATERIALS,4(1).
MLA	Multer, Daniel,et al."Imaging real-space flat band localization in kagome magnet FeSn".COMMUNICATIONS MATERIALS 4.1(2023).