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Realizing Kagome Band Structure in Two-Dimensional Kagome Surface States of RV₆Sn₆ (R=Gd,Ho)

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arxiv 2112.15007 v1 pith:PKHAMUAV submitted 2021-12-30 cond-mat.mtrl-sci cond-mat.str-el

Realizing Kagome Band Structure in Two-Dimensional Kagome Surface States of RV₆Sn₆ (R=Gd,Ho)

Shuting Peng , Yulei Han , Ganesh Pokharel , Jianchang Shen , Zeyu Li , Makoto Hashimoto , Donghui Lu , Brenden R. Ortiz
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Yang Luo Houchen Li Mingyao Guo Bingqian Wang Shengtao Cui Zhe Sun Zhenhua Qiao Stephen D. Wilson Junfeng He
This is my paper
classification cond-mat.mtrl-sci cond-mat.str-el
keywords kagomestatessurfaceintrinsictwo-dimensionalangleatomicband
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We report angle resolved photoemission experiments on a newly discovered family of kagome metals $RV_{6}Sn_{6}$ ($R$=Gd, Ho). Intrinsic bulk states and surface states of the vanadium kagome layer are differentiated from those of other atomic sublattices by the real-space resolution of the measurements with a small beam spot. Characteristic Dirac cone, saddle point and flat bands of the kagome lattice are observed. Our results establish the two-dimensional (2D) kagome surface states as a new platform to investigate the intrinsic kagome physics.

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