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

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

2002-12-05

arxiv.org/abs/cond-mat/0212110v2

Phys. Rev. Lett. 90, 186403 (2003)

Physics

Condensed Matter

Strongly Correlated Electrons

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

Scientific paper

10.1103/PhysRevLett.90.186403

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.

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