High-magnetic-field studies of R-T intermetallics

A review is presented of high-field magnetization studies on 3d-rich rare-earth intermetallic compounds. The emphasis is on the evaluation of the intersublattice coupling of the rare-earth and 3d magnetic moments from magnetization studies on monocrystalline samples that are free to orient and reorient themselves in the applied magnetic field. As a first approach, a two-sublattice model is introduced with a dominant anisotropy for one of the sublattices. Several extensions of this model are also discussed. This model is found to be very well applicable to powdered samples prepared from polycrystalline ingots if the powder particles are sufficiently small to consider them as single-grain particles. ((orig.))