Phase diagram of the frustrated, spatially anisotropic S=1 antiferromagnet on a square lattice

H. C. Jiang, F. Krüger, J. E. Moore +3

We study the S=1 square lattice Heisenberg antiferromagnet with spatially anisotropic nearest neighbor couplings $J_{1x}$, $J_{1y}$ frustrated by a next-nearest neighbor coupling $…