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arXiv · 0908.2870

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

H. Fujiwara·A. Sekiyama·S. -K. Mo·J. W. Allen·J. Yamaguchi·G. Funabashi·S. Imada·P. Metcalf·A. Higashiya·M. Yabashi·K. Tamasaku·T. Ishikawa·S. Suga
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Abstract

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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H. Fujiwara, A. Sekiyama, S. -K. Mo, J. W. Allen, J. Yamaguchi, G. Funabashi, S. Imada, P. Metcalf, A. Higashiya, M. Yabashi, K. Tamasaku, T. Ishikawa, S. Suga. 2010-02-08. Evidence for the constancy of U in the Mott transition of V2O3. https://arxiv.org/abs/0908.2870

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