Anisotropic two-dimensional Heisenberg model by Schwinger-boson Gutzwiller projected method

T. Miyazaki, D. Yoshioka, M. Ogata

Two-dimensional Heisenberg model with anisotropic couplings in the $x$ and $y$ directions ($J_x\ne J_y$) is considered. The model is first solved in the Schwinger-boson mean-fiel…