Quantum oscillations revealing topological band in kagome metal ScV6Sn6

Abstract

Compounds with kagome lattice structure are known to exhibit Dirac cones, flat bands, and van Hove singularities, which host numerous versatile quantum phenomena. Inspired by these intriguing properties, we investigate the temperature and magnetic field dependent electrical transports along with the theoretical calculations of ScV6Sn6, a nonmagnetic charge density wave (CDW) compound. At low temperatures, the compound exhibits Shubnikov-de Haas quantum oscillations, which help to design the Fermi surface (FS) topology. This analysis reveals the existence of several small FSs in the Brillouin zone, combined with a large FS. Among them, the FS possessing Dirac band is a non-trivial and generates a non-zero Berry phase. In addition, the compound also 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 and provides various promising opportunities to explore the series further.

Published version, 19 Pages, 5 figures with supplementary

References in corpus (27)

• CsV${}_3$Sb${}_5$: a ${\mathbb{Z}}_2$ topological kagome metal with a superconducting ground state
• Discovery of a quantum limit Chern magnet TbMn6Sn6
• Time-reversal symmetry-breaking charge order in a kagome superconductor
• Charge density waves and electronic properties of superconducting kagome metals
• Concurrence of anomalous Hall effect and charge density wave in a superconducting topological kagome metal
• Chiral flux phase in the Kagome superconductor AV${}_3$Sb${}_5$
• Discovery of charge density wave in a correlated kagome lattice antiferromagnet
• Nature of unconventional pairing in the kagome superconductors AV${}_3$Sb${}_5$
• Rotation symmetry breaking in the normal state of a kagome superconductor KV3Sb5
• Fermi surface mapping and the nature of charge density wave order in the kagome superconductor CsV${}_3$Sb${}_5$
• Charge density wave in kagome lattice intermetallic ScV6Sn6
• Intertwined magnetism and charge density wave order in kagome FeGe
• Charge order breaks time-reversal symmetry in CsV${}_3$Sb${}_5$
• Quantum transport evidence of topological band structures of kagome superconductor CsV3Sb5
• Study of the electronic properties of topological kagome metals YV${}_6$Sn${}_6$ and GdV${}_6$Sn${}_6$
• Tunable Topological Dirac Surface States and Van Hove Singularities in Kagome Metal GdV${}_6$Sn${}_6$
• Loop currents in $A$V${}_3$Sb${}_5$ kagome metals: multipolar and toroidal magnetic orders
• Observation of topological transition of Fermi surface from a spindle-torus to a torus in large bulk Rashba spin-split BiTeCl
• Softening of a flat phonon mode in the kagome ScV${}_6$Sn${}_6$
• Crystal growth and quantum oscillations in the topological chiral semimetal CoSi
• Optical spectroscopy and band structure calculations of structural phase transition in the Vanadium-based kagome metal ScV${}_6$Sn${}_6$
• Flat band separation and robust spin-Berry curvature in bilayer kagome metals
• Temperature-Induced Lifshitz Transition and Possible Excitonic Instability in ZrSiSe
• Network of topological nodal planes, multifold degeneracies, and Weyl points in CoSi
• Origin and stability of the charge density wave in ScV${}_6$Sn${}_6$
• Origin of the butterfly magnetoresistance in ZrSiS
• Unreliability of two-band model analysis of magnetoresistivities in unveiling temperature-driven Lifshitz transition

Cited by in corpus (16)

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• Nematic Ising superconductivity with hidden magnetism in few-layer 6R-TaS2
• FeGe as a building block for the kagome 1:1, 1:6:6, and 1:3:5 families: hidden d-orbital decoupling of flat band sectors, effective models and interaction Hamiltonians
• Kagome metals
• Kagome Materials I: SG 191, ScV${}_6$Sn${}_6$. Flat Phonon Soft Modes and Unconventional CDW Formation: Microscopic and Effective Theory
• Anisotropic transport properties and topological Hall effect in the annealed kagome antiferromagnet FeGe
• Quantum oscillation studies of the nodal line semimetal Ni3In2S2-xSex
• Origin of competing charge density waves in kagome metal ScV${}_6$Sn${}_6$
• Orbital selective commensurate modulations of the local density of states in ScV6Sn6 probed by nuclear spins
• Anomalous Nernst Effect and Its Implications for Time-Reversal Symmetry Breaking in Kagome Metal ScV6Sn6
• Pressure suppresses the density wave order in kagome metal LuNb${}_6$Sn${}_6$
• Pseudo anomalous Hall effect in semiconductors and semimetals: A classical perspective
• Beyond kagome: $p$-bands in kagome metals
• Tunable topological phase in 2D ScV${}_6$Sn${}_6$ kagome material
• Sub-tesla on-chip nanomagnetic metamaterial platform for angle-resolved photoemission spectroscopy
• Revealing magnetism in the distorted kagome $R$Ti${}_3$Bi${}_4$ ($R$ = Nd, Sm, Gd) via ARPES and XMCD