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- W1994358168 abstract "Using coherent potential approximation we study zero-temperature Mott transition of the half-filled Hubbard model in a two-dimensional square lattice with geometrical frustration. It turns out that the geometrical frustration reduces the gap between the Hubbard bands. As a result the metallic phase is stabilized up to a fairly large value of the on-site Coulomb interaction. We found that the critical value $U_C$ for the Mott transition is enhanced by the geometrical frustration. Our results are in good agreement with the ones obtained by the single-site dynamical mean-field theory." @default.
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- W1994358168 date "2013-04-10" @default.
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- W1994358168 title "Mott Transition of the Half-filled Hubbard Model in a Two-dimensional Frustrated Lattice" @default.
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- W1994358168 doi "https://doi.org/10.15625/0868-3166/23/1/538" @default.
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