Phase diagram of an anisotropic bosonic t-J modelPhysics Review B
AbstractWe have studied by quantum Monte Carlo simulations the low temperature phase diagram of a mixture of isotopic, hard core bosons, described by the t-Jz-J⊥ model, with J⊥=αJz. The coexistence of superfluid hole-rich and insulating, antiferromagnetically ordered hole-free phases is observed at sufficiently low hole density for any α<1. A two-component checkerboard supersolid phase is not observed. The experimental relevance and possible broader implications of these findings are discussed.
Citation InformationM Boninsegni and Nikolai Prokof'ev. "Phase diagram of an anisotropic bosonic t-J model" Physics Review B Vol. 77 Iss. 9 (2008)
Available at: http://works.bepress.com/nikolai_prokofev/15/