Prominent quasi-particle peak in the photoemission spectrum of the metallic phase of V_2O_3

Abstract

We present the first observation of a prominent quasi-particle peak in the photoemission spectrum of the metallic phase of V_2O_3 and report new spectral calculations that combine the local density approximation with the dynamical mean-field theory (using quantum Monte Carlo simulations) to show the development of such a distinct peak with decreasing temperature. The experimental peak width and weight are significantly larger than in the theory.

4 pages, 3 figures, supercedes cond-mat/0108044

References in corpus (5)

• Mott-Hubbard Metal-Insulator Transition in Paramagnetic V_2O_3: a LDA+DMFT(QMC) Study
• Orbital occupation, local spin and exchange interactions in V2O3
• Evolution of spectral function in a doped Mott insulator : surface vs. bulk contributions
• Orbitally Degenerate Spin-1 Model for Insulating V2O3
• Spin-1 effective Hamiltonian with three degenerate orbitals: An application to the case of V${}_2$O${}_3$

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