Evidence for the constancy of U in the Mott transition of V2O3

Details Evidence for the constancy of U in the Mott transition of V2O3 Evidence for the constancy of U in the Mott transition of V2O3

2009-08-20

arxiv.org/abs/0908.2870v2

Physics

Condensed Matter

Strongly Correlated Electrons

4 pages, 3 figures

Scientific paper

We have performed high-resolution hard X-ray photoemission spectroscopy for the metal-insulator transition (MIT) system (V(1-x)Cr(x))2O3 in the paramagnetic metal, paramagnetic insulator and antiferromagentic insulator phases. The quality of the spectra enables us to conclude that the on-site Coulomb energy U does not change through the MIT, which eliminate all but one theoretical MIT scenario in this paradigm material.

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