Specific heat for the periodic Anderson model

J. Zieliński and M. Matlak

Physica A: Statistical Mechanics and its Applications, 1982, vol. 110, issue 3, 624-630

Abstract: We have considered the symmetric periodic Anderson model (PAM). The specific heat has been calculated in the approximation which corresponds to the Nagaoka-type decoupling scheme for the case of single impurity. It starts to have a double peak structure with the increase of Coulomb repulsion U in analogy to the results for single impurity Anderson model. We have found that the width of a gap in the density of states around the Fermi energy decreases with the increase of U and vanishes for infinite value of this parameter.

Date: 1982
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:110:y:1982:i:3:p:624-630

DOI: 10.1016/0378-4371(82)90074-7

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