The magnetization process of the spin-one triangular-lattice Heisenberg   antiferromagnet
  We apply the coupled cluster method and exact diagonalzation to study the uniform susceptibility and the ground-state magnetization curve of the triangular-lattice spin-1 Heisenberg antiferromagnet. Comparing our theoretical data for the magnetization curve with recent measurements on the s=1 triangular lattice antiferromagnet Ba3NiSb2O9 we find a very good agreement. 
J. Richter, O. G\"otze, R. Zinke, D. J. J. Farnell, and H. Tanaka
cond-mat.str-el