Mean-field ground-state phase diagram of the $t-t^{\prime }$ ionic-Hubbard chain

Mikheil Sekania, Shota Garuchava, Jamal Berakdar +1

Ground state (GS) phase diagram of the one dimensional repulsive Hubbard model with both nearest neighbor ($t$) and next-nearest-neighbor ($t^{\prime }$) hopping and a staggered pot…