We have undertaken a first‐principles theoretical study of the Anderson hybridization in cubic CeCd and CeAg as a function of volume reduction. We present results for the hybridization width Δ(ϵ) in both the J=5/2 multiplet and in the Γ8, Γ7 crystal field states of the f1 Ce configuration. We also calculate the hybridization contribution to the magnetic transition temperature. This is found to increase with pressure but is smaller than the experimental values, indicating that the Coulomb exchange contribution to the magnetic coupling is not negligible in these compounds.
VOLUME DEPENDENCE OF ANDERSON HYBRIDIZATION IN CUBIC CECD AND CEAG
MONACHESI, Patrizia;CONTINENZA, Alessandra;
1993-01-01
Abstract
We have undertaken a first‐principles theoretical study of the Anderson hybridization in cubic CeCd and CeAg as a function of volume reduction. We present results for the hybridization width Δ(ϵ) in both the J=5/2 multiplet and in the Γ8, Γ7 crystal field states of the f1 Ce configuration. We also calculate the hybridization contribution to the magnetic transition temperature. This is found to increase with pressure but is smaller than the experimental values, indicating that the Coulomb exchange contribution to the magnetic coupling is not negligible in these compounds.File in questo prodotto:
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