Metal-insulator Phase Diagram for the Fully Diagonal Disordered Hubbard Model at Half-filling
Keywords:metal-insulator transition, phase diagram, disordered Hubbard model
AbstractThe electronic properties of strongly correlated systems with binary type of disorder are investigated using the coherent potential approximation. For half-filled system, two transitions from a band insulator via a metallic state to a Mott insulator are found with increasing the correlation strength of only one of the constituents. Our phase diagram is consistent with those obtained by the dynamical mean field theory.
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