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19992025
most citedConstraining density functional approximations to yield self-interaction free potentials

40 citations · 332 across the 25 of their papers we have counts for

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cond-mat1999

Born Effective Charge Reversal and Metallic Threshold State at a Band Insulator-Mott Insulator Transition

N. Gidopoulos S. Sorella, E. Tosatti

We study the quantum phase transition between a band (``ionic'') insulator and a Mott-Hubbard insulator, realized at a critical value U=Uc in a bipartite Hubbard model with two ine…