Quantum oscillations evidence for topological bands in kagome metal ScV 6 Sn 6

Metals with kagome lattice provide bulk materials to host both the flat-band and Dirac electronic dispersions. A new family of kagome metals is recently discovered in V Sn . The Dirac electronic structures of this material needs more experimental evidence to confirm. In the manuscript, we investigat...

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Bibliographic Details
Published in:Journal of physics. Condensed matter 2024-05, Vol.36 (21), p.215501
Main Authors: Zheng, Guoxin, Zhu, Yuan, Mozaffari, Shirin, Mao, Ning, Chen, Kuan-Wen, Jenkins, Kaila, Zhang, Dechen, Chan, Aaron, Arachchige, Hasitha W Suriya, Madhogaria, Richa P, Cothrine, Matthew, Meier, William R, Zhang, Yang, Mandrus, David, Li, Lu
Format: Article
Language:English
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Summary:Metals with kagome lattice provide bulk materials to host both the flat-band and Dirac electronic dispersions. A new family of kagome metals is recently discovered in V Sn . The Dirac electronic structures of this material needs more experimental evidence to confirm. In the manuscript, we investigate this problem by resolving the quantum oscillations in both electrical transport and magnetization in ScV Sn . The revealed orbits are consistent with the electronic band structure models. Furthermore, the Berry phase of a dominating orbit is revealed to be around , providing direct evidence for the topological band structure, which is consistent with calculations. Our results demonstrate a rich physics and shed light on the correlated topological ground state of this kagome metal.
ISSN:0953-8984
1361-648X
DOI:10.1088/1361-648X/ad2803