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Compounds with kagome lattice structure are known to exhibit Dirac cones,flat bands, and van Hove singularities, which host numerous versatile quantumphenomena. Inspired by these intriguing properties, we investigate thetemperature and magnetic field dependent electrical transports along with thetheoretical calculations of ScV6Sn6, a nonmagnetic charge density wave (CDW)compound. At low temperatures, the compound exhibits Shubnikov-de Haas quantumoscillations, which help to design the Fermi surface (FS) topology. Thisanalysis reveals the existence of several small FSs in the Brillouin zone,combined with a large FS. Among them, the FS possessing Dirac band is anon-trivial and generates a non-zero Berry phase. In addition, the compoundalso shows the anomalous Hall-like behaviour up to the CDW with the CDW phase,ScV6Sn6 presents a unique material example of the versatile HfFe6Ge6 family andprovides various promising opportunities to explore the series further.

Quantum oscillations revealing topological band in kagome metal ScV6Sn6