Abstract
The magnetic properties of the rare earth antimonides are anisotropic below ordering temperatures. In the compounds of Ce, Nd, Dy, and Ho the crystalline field confines the spin to the [100] axis. The observed uniaxial metamagnetism is explained in terms of the Ising model. The induced magnetic moments depend strongly on the direction of the applied field. This anisotropy is less pronounced in the cases of TbSb and ErSb, in good agreement with theoretical considerations. Metastable spin structures are observed in DySb, HoSb, and CeSb.