Fermi surface topology in a metallic phase of VO thin films grown on TiO(001) substrates.

Since the first observation of the metal-to-insulator transition (MIT), VO has attracted substantial attention in terms of whether this transition is impelled by electron-phonon interaction (Peierls transition) or electron-electron interaction. Regarding Peierls transition, it has been theoretically predicted that the Fermi surface (FS) cross-section exhibits certain nesting features for a metallic phase of VO. Various experimental studies related to the nesting feature have been reported.