Abstract
The room temperature lattice constant and temperature dependence specific heat, magnetic susceptibility and electrical resistivity have been measured for Ce(Tl 1−xSn x) 3 system, where 0≤x≤1, in order to see the salient features associated with the magnetic-nonmagnetic transition. The concentration dependence of the lattice constant, TN, YHT and entropy removal are discussed in terms of the f-spd hybridization. The data suggest a valence transition of Ce from a stable trivalent magnetic state to a strongly mixed valence (noninteger) state, attributed to the increase of f-spd hybridization. The results are compared with those obtained for other reported Ce-based trivalent-mixed valent systems, and are qualitatively consistent with the theoretical prediction of the Newns and Hewson theory.
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