We report experimental results for the magnetic susceptibility χ(x ; T) and equation of state of Ce1-xThx. We argue that both lattice-mediated interactions and electronic screening interactions are involved in the valence transition. The magnetic behaviour in the intermediate valence state is that of a narrow band fermi liquid. The Curie-Weiss-like behaviour observed in the integral valence state may reflect valence fluctuations or spin fluctuations arising from the proximity of the 4f level to the fermi energy. The coupling of resistivity and effective moment χT to the order parameter stand in need of theoretical justification.
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Lawrence et al. (1976) studied this question.
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