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The saturation magnetization of gadolinium has been found to follow a T^3{2} law between 20-250^. The saturation magnetization at absolute zero, determined by extrapolation is 253. 60. 9 cgs units, corresponding to 7. 12 Bohr magnetons. The data fall considerably below the theoretical curve predicted by the Debye quantum modification of the Weiss theory of ferromagnetism for the ^8S₇₂ state. Curie point determinations have also been made.
Elliott et al. (Wed,) studied this question.