Magnetization measurements were made of wurtzite crystals, using magnetic fields of up to 6T; parallel or perpendicular to the hexagonal axis. A marked anisotropy of the magnetization was observed for CdVS at 2 or 10K. The anisotropy was much weaker for CdVSe. The magnetization data were well-described by a crystal-field model for the V2+ center; taking into account the strong static Jahn-Teller effect of the trigonal symmetry. The differences in the anisotropy of the magnetization for these compounds were attributed to the differing distributions of the V2+ centers.

Role of the Jahn-Teller effect of the V2+ center in the magnetic anisotropy of Cd1-xVxS and Cd1-xVxSe M.Herbich, W.Mac, A.Twardowski, M.Demianiuk: Physical Review B, 1999, 59[4], 2726-30