Correlation induced insulator to metal transitions.
作者： Qimiao Si , M. J. Rozenberg , G. Kotliar , A. E. Ruckenstein
DOI: 10.1103/PHYSREVLETT.72.2761
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摘要: We study a spinless two-band model at half-filling in the limit of infinite dimensions. The ground state this noninteracting is band insulator. identify transitions to metal and charge Mott insulator, using combination analytical, quantum Monte Carlo, zero temperature recursion methods. metallic phase non-Fermi-liquid with algebraic local correlation functions universal exponents over range parameters.
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