Realizing Kagome Band Structure in Two-Dimensional Kagome Surface States of $RV_{6}Sn_{6}$ ($R$=Gd,Ho)

Bingqian Wang; Brenden R. Ortiz; Donghui Lu; Ganesh Pokharel; Houchen Li; Jianchang Shen; Junfeng He; Makoto Hashimoto; Mingyao Guo; Shengtao Cui

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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

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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.

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

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