Abstract
The thermodynamic potential of rare earth compounds in a mixed valent state is investigated by perturbation theoretical methods. Two types of contributions must be distinguished, the impurity terms and terms corresponding to interactions between different rare earth sites. For a large class of substances the latter are shown to be of minor importance. The susceptibility of the resulting theory is compared directly with the renormalization group calculations of Krishna-murthy, Wilson and Wilkins and with measured susceptibilities ofα-Ce, SmB6, YbAl3.
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Bringer, A., Lustfeld, H. Susceptibility of rare earth compounds in the intermediate valence state. Z Physik B 28, 213–224 (1977). https://doi.org/10.1007/BF01313044
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DOI: https://doi.org/10.1007/BF01313044