Polarization catastrophe at low densities of polarons: from Cuprates to Metal-Ammonia Solutions

Details Polarization catastrophe at low densities of polarons: from Cuprates to Metal-Ammonia Solutions Polarization catastrophe at low densities of polarons: from Cuprates to Metal-Ammonia Solutions

2005-10-20

arxiv.org/abs/cond-mat/0510539v1

Physics

Condensed Matter

Superconductivity

Proceedings of the International School of Physics "Enrico Fermi", Course CLXI -"Polarons in Bulk Materials and Systems with R

Scientific paper

We review some results on the role played by dielectric polarons at the metal-insulator transition in polarizable materials, taking into account the long-range nature of the Coulomb interactions. The occurrence of a polarization catastrophe is examined in a model describing a Wigner crystal of polarons. The possible relevance of this scenario in the cuprates and in metal-ammonia solutions is discussed.

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