Analytical description of V2O3 by the Hubbard model in infinite dimensions
Department of Physics Education, Seoul National
University - Seoul 151-742, Korea
Accepted: 2 January 1996
We show that the analytic single-particle density of states and the optical conductivity for the half-filled Hubbard model on the Bethe lattice with infinite connectivity describe quantitatively the behaviour of the gap and the kinetic-energy ratio of the correlated insulator . The form of the optical conductivity shows rising and is quite similar to the experimental data, and the density of states shows behaviour near low-frequency band edges.
PACS: 71.30.+h – Metal-insulator transitions / 78.20.-e – Optical properties of bulk materials / 71.27.+a – Strongly correlated electron systems
© EDP Sciences, 1996