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most citedInsulating behavior with spin and charge order in the ionic Hubbard model

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cond-mat.str-el2003

Nature of the insulating phases in the half-filled ionic Hubbard model

A. P. Kampf, M. Sekania, G. I. Japaridze +1

We investigate the ground-state phase diagram of the one-dimensional "ionic" Hubbard model with an alternating periodic potential at half-filling by numerical diagonalization of fi…