Emergence of large quantum oscillation frequencies in thin flakes of the kagome superconductor CsV${}_3$Sb${}_5$

W. Zhang, Lingfei Wang, Chun Wai Tsang +5

Kagome metals AV${}_3$Sb${}_5$~(A = K, Rb, Cs) are recently discovered platforms featuring an unusual charge-density-wave (CDW) order and superconductivity. The electronic band structu…