Abstract
The Coherent Potential Approximation (CPA) is applied to substitutional disordered alloys consisting of rare earth metal ions with singlet ground state and non-magnetic components. We calculate the dependence of the elementary excitations and the transition temperature on the concentration of impurities.
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The author would like to thank Prof. P. Fulde, Dr. B. Hönerlage, and Dr. I. Peschel for stimulating discussions.
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Schmidt, U. Coherent-Potential model of a dilute van vleck paramagnet. Z. Physik 267, 277–282 (1974). https://doi.org/10.1007/BF01669448
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DOI: https://doi.org/10.1007/BF01669448