Communications in Physics 26, 159-164 (2016)

ISSN: 0868-3166

METAL-INSULATOR PHASE DIAGRAM FOR THE FULLY DIAGONAL DISORDERED HUBBARD MODEL AT HALF-FILLING

HOANG ANH TUAN AND NGUYEN THI HAI YEN

The 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.

DOI: 10.15625/0868-3166/26/2/8487

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