Orbital-selective effect of spin reorientation on the Dirac fermions in a non-charge-ordered kagome ferromagnet Fe<sub>3</sub>Ge

doi:10.1038/s41467-024-53343-w

	Orbital-selective effect of spin reorientation on the Dirac fermions in a non-charge-ordered kagome ferromagnet Fe₃Ge
	Lou, Rui 1,2,3; Zhou, Liqin 4,5,6; Song, Wenhua 7,8; Fedorov, Alexander 1,2,3; Tu, Zhijun 7,8; Jiang, Bei 4,5,6; Wang, Qi7,8,9,10 ; Li, Man 11; Liu, Zhonghao 12,13; Chen, Xuezhi 6,14; Rader, Oliver 2; Buechner, Bernd 1,15; Sun, Yujie 16,17,18,19; Weng, Hongming 4,5,6,20; Lei, Hechang 7,8; Wang, Shancai 7,8
	2024-11-13
发表期刊	NATURE COMMUNICATIONS (IF:14.7[JCR-2023],16.1[5-Year])
ISSN	2041-1723
EISSN	2041-1723
卷号	15 期号:1
发表状态	已发表
DOI	10.1038/s41467-024-53343-w
摘要	Kagome magnets provide a fascinating platform for the realization of correlated topological quantum phases under various magnetic ground states. However, the effect of the magnetic spin configurations on the characteristic electronic structure of the kagome-lattice layer remains elusive. Here, utilizing angle-resolved photoemission spectroscopy and density functional theory calculations, we report the spectroscopic evidence for the spin-reorientation effect of a kagome ferromagnet Fe3Ge, which is composed solely of kagome planes. As the Fe moments cant from the c-axis into the ab plane upon cooling, the two kinds of kagome-derived Dirac fermions respond quite differently. The one with less-dispersive bands (k(z) similar to 0) containing the 3d(z)(2) orbitals evolves from gapped into nearly gapless, while the other with linear dispersions (k(z) similar to pi) embracing the 3d(xz)/3d(yz) components remains intact, suggesting that the effect of spin reorientation on the Dirac fermions has an orbital selectivity. Moreover, we demonstrate that there is no signature of charge order formation in Fe3Ge, contrasting with its sibling compound FeGe, a newly established charge-density-wave kagome magnet.
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收录类别	SCI
语种	英语
资助项目	Deutsche Forschungsgemeinschaft[SFB 1143] ; Wurzburg-Dresden Cluster of Excellence on Complexity and Topology in Quantum Matter-ct.qmat[
WOS研究方向	Science & Technology - Other Topics
WOS类目	Multidisciplinary Sciences
WOS记录号	WOS:001354505000034
出版者	NATURE PORTFOLIO
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/483933
专题	物质科学与技术学院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	Lou, Rui; Weng, Hongming; Lei, Hechang; Wang, Shancai
作者单位	1.IFW Dresden, Leibniz Inst Solid State & Mat Res, D-01069 Dresden, Germany 2.Helmholtz Zentrum Berlin Mat & Energie, Albert Einstein Str 15, D-14109 Berlin, Germany 3.Joint Lab Funct Quantum Mat BESSY II, D-12489 Berlin, Germany 4.Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China 5.Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China 6.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 7.Renmin Univ China, Dept Phys, Key Lab Quantum State Construct & Manipulat, Minist Educ, Beijing 100872, Peoples R China 8.Renmin Univ China, Beijing Key Lab Optoelect Funct Mat & Micronano De, Beijing 100872, Peoples R China 9.ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 201210, Peoples R China 10.ShanghaiTech Univ, ShanghaiTech Lab Topol Phys, Shanghai 201210, Peoples R China 11.Peoples Publ Secur Univ China, Sch Informat Network Secur, Beijing 100038, Peoples R China 12.Ningbo Univ, Inst High Pressure Phys, Ningbo 315211, Peoples R China 13.Ningbo Univ, Sch Phys Sci & Technol, Ningbo 315211, Peoples R China 14.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China 15.Tech Univ Dresden, Inst Solid State & Mat Phys, D-01069 Dresden, Germany 16.Southern Univ Sci & Technol SUSTech, Dept Phys, Shenzhen 518055, Peoples R China 17.Southern Univ Sci & Technol SUSTech, Guangdong Basic Res Ctr Excellence Quantum Sci, Shenzhen 518055, Peoples R China 18.Quantum Sci Ctr Guangdong Hong Kong Macao Greater, Shenzhen 518045, Peoples R China 19.Inst Adv Sci Facil, Shenzhen 518107, Guangdong, Peoples R China 20.Songshan Lake Mat Lab, Dongguan 523808, Guangdong, Peoples R China
推荐引用方式 GB/T 7714	Lou, Rui,Zhou, Liqin,Song, Wenhua,et al. Orbital-selective effect of spin reorientation on the Dirac fermions in a non-charge-ordered kagome ferromagnet Fe₃Ge[J]. NATURE COMMUNICATIONS,2024,15(1).
APA	Lou, Rui.,Zhou, Liqin.,Song, Wenhua.,Fedorov, Alexander.,Tu, Zhijun.,...&Wang, Shancai.(2024).Orbital-selective effect of spin reorientation on the Dirac fermions in a non-charge-ordered kagome ferromagnet Fe₃Ge.NATURE COMMUNICATIONS,15(1).
MLA	Lou, Rui,et al."Orbital-selective effect of spin reorientation on the Dirac fermions in a non-charge-ordered kagome ferromagnet Fe₃Ge".NATURE COMMUNICATIONS 15.1(2024).