Electronic nature of charge density wave and electron-phonon coupling in kagome superconductor KV3Sb5

Electronic nature of charge density wave and electron-phonon coupling in kagome superconductor KV3Sb5 Abstract The Kagome superconductors AV 3 Sb 5 (A = K, Rb, Cs) have received enormous attention due to their nontrivial topological electronic structure, anomalous physical properties and superconductivity. Unconventional charge density wave (CDW) has been detected in AV 3 Sb 5 . High-precision electronic structure determination is essential to understand its origin. Here we unveil electronic na...