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.
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d’Ambrumenil, N., Fulde, P. (1985). Quasiparticles in Heavy Fermi Liquids and Their Interactions With Phonons. In: Kasuya, T., Saso, T. (eds) Theory of Heavy Fermions and Valence Fluctuations. Springer Series in Solid-State Sciences, vol 62. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-82618-4_14
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DOI: https://doi.org/10.1007/978-3-642-82618-4_14
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