Quasiparticles in Heavy Fermi Liquids and Their Interactions With Phonons

  • N. d’Ambrumenil
  • P. Fulde
Conference paper
Part of the Springer Series in Solid-State Sciences book series (SSSOL, volume 62)

Abstract

We show how the low temperature properties of CeCu2Si2 and Kondo lattices in general can be predicted semiquantitatively. In particular we look at the density of quasi-particle excitations for energies much less than the Kondo temperature where the systems behave like heavy Fermi liquids. We also discuss the interactions of quasi-particles with phonons and how they may influence the properties of phonons. It is shown that they are sufficiently strong in order to result in a superconducting transition temperature in CeCu2Si2 of the observed size.

Keywords

Coherence Compressibility Tral CeCu 

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Copyright information

© Springer-Verlag Berlin Heidelberg 1985

Authors and Affiliations

  • N. d’Ambrumenil
    • 1
  • P. Fulde
    • 2
  1. 1.Department of PhysicsUniversity of WarwickGreat Britain
  2. 2.Max-Planck-Institut für FestkörperforschungStuttgart 80Fed. Rep. of Germany

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