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Specific heat for the periodic Anderson model

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  • Zieliński, J.
  • Matlak, M.

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.

Suggested Citation

  • Zieliński, J. & Matlak, M., 1982. "Specific heat for the periodic Anderson model," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 110(3), pages 624-630.
    • Handle: RePEc:eee:phsmap:v:110:y:1982:i:3:p:624-630
    DOI: 10.1016/0378-4371(82)90074-7
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    References listed on IDEAS

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    1. Zielinska, B.J.A. & Bedeaux, D. & Vlieger, J., 1981. "Electric and magnetic susceptibilities for a fluid-fluid interface; The ellipsometric coefficient," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 107(1), pages 91-108.
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