Dziurzik, C.; Japaridze, G. I.; Schadschneider, A.; … - In: The European Physical Journal B - Condensed Matter and … 51 (2006) 1, pp. 41-51
In this paper we study the ground state phase diagram of a one-dimensional t-J-U model away from half-filling. In the large-bandwidth limit and for ferromagnetic exchange with easy-plane anisotropy a phase with gapless charge and massive spin excitations, characterized by the coexistence of...