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Analytical description of V2O3 by the Hubbard model in infinite dimensions

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1996 EDP Sciences
, , Citation J. Hong and H.-Y. Kee 1996 EPL 33 453 DOI 10.1209/epl/i1996-00361-2

0295-5075/33/6/453

Abstract

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 V2O3. The form of the optical conductivity shows ω3/2 rising and is quite similar to the experimental data, and the density of states shows ω1/2 behaviour near low-frequency band edges.

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10.1209/epl/i1996-00361-2