FFLO oscillations and magnetic domains in the Hubbard model with   off-diagonal Coulomb repulsion
  We observe the effect of non-zero magnetization m onto the superconducting ground state of the one dimensional repulsive Hubbard model with correlated hopping X. For t/2 < X < 2t/3, the system first manifests Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) oscillations in the pair-pair correlations. For m = m1 a kinetic energy driven macroscopic phase separation into low-density superconducting domains and high-density polarized walls takes place. For m > m2 the domains fully localize, and the system eventually becomes a ferrimagnetic insulator. 
A. Anfossi, C. Degli Esposti Boschi and A. Montorsi
cond-mat.str-el cond-mat.supr-con