Paramagnetic Behavior of Some Rare-Earth Cobalt Compounds

Abstract

In the ferrimagnetic rare-earth cobalt compounds, the reciprocal susceptibility obeys a Néel-type law. As a function of rare-earth content, the paramagnetic moments of cobalt atoms vary similarly with those deduced from saturation measurements. Particularly, for $R{\mathrm{Co}}_2$ ($R=\mathrm{G}\mathrm{d},\mathrm{T}\mathrm{b},\mathrm{D}\mathrm{y},\mathrm{H}\mathrm{o},\mathrm{o}\mathrm{r}\mathrm{E}\mathrm{r}$) compounds the cobalt effective moment is $(2.00\mathrm{}\pm 0.50){\mu }_B$, twice the value obtained in the ordered state.