Abstract
Magnetization measurements have been performed between 3.8 K and above the respective Curie temperatures, with magnetic fields up to 20.5 kOe, in polycrystalline samples of the cubic RENi 2 intermetallic compounds (RE = Pr, Nd, Sm, Gd, Tb, Dy, Ho, Er and Tm). The compounds show ferromagnetic order, except PrNi 2 and TmNi 2 which do not order down to 4 K. Crystal electric field (CEF) calculations for the thermal variation of the susceptibility in PrNi 2 agree well with experiment. Also the calculated thermal variation of magnetization in the polycrystals, by the use of the CEF theory, agrees quite well with experiment for the compounds TbNi 2, DyNi 2, HoNi 2 and ErNi 2. Polycrystalline magnetization and susceptibility are therefore quite valuable to study CEF effects in cubic rare-earth intermetallic compounds.
Published Version
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