Mott-Hubbard metal-insulator transition at noninteger filling

@article{Byczuk2004MottHubbardMT,
title={Mott-Hubbard metal-insulator transition at noninteger filling},
author={Krzysztof Byczuk and Walter Hofstetter and Dieter Vollhardt},
journal={Physical Review B},
year={2004},
volume={69},
pages={045112}
}
• Published 2 September 2003
• Physics, Materials Science
• Physical Review B
Correlated electrons in a binary alloy ${A}_{x}{B}_{1\ensuremath{-}x}$ are investigated within the Hubbard model and dynamical mean-field theory (DMFT). The random energies ${\ensuremath{\epsilon}}_{i}$ have a bimodal probability distribution and an energy separation $\ensuremath{\Delta}.$ We solve the DMFT equations by the numerical renormalization-group method at zero temperature and calculate the spectral density as a function of disorder strength $\ensuremath{\Delta}$ and interaction U at…
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