%0 Journal Article
%J Physical Review B
%D 2014
%T Case study of the uniaxial anisotropic spin-1 bilinear-biquadratic Heisenberg model on a triangular lattice
%A Moreno-Cardoner, M.
%A Perrin, H.
%A Paganelli, S.
%A De Chiara, G.
%A Sanpera, A.
%X We study the spin-1 model on a triangular lattice in the presence of a uniaxial anisotropy field using a cluster mean-field (CMF) approach. The interplay among antiferromagnetic exchange, lattice geometry, and anisotropy forces Gutzwiller mean-field approaches to fail in a certain region of the phase diagram. There, the CMF method yields two supersolid phases compatible with those present in the spin−1/2 XXZ model onto which the spin-1 system maps. Between these two supersolid phases, the three-sublattice order is broken and the results of the CMF approach depend heavily on the geometry and size of the cluster. We discuss the possible presence of a spin liquid in this region.
%B Physical Review B
%V 90
%8 10/2014
%N 14
%! Phys. Rev. B
%R 10.1103/PhysRevB.90.144409