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Polaronic Effect and Its Impact on T c for Novel Layered Superconducting Systems

  • Vladimir Kresin
Open Access
Letter

Abstract

The crystal lattice of a complex compound may contain a subsystem of ions with each one possessing two close equilibrium positions (double-well structure). For example, the oxygen ions in the cuprates form such a subsystem. In such a situation it is impossible to separate electronic and local vibrational motions. This leads to a large increase in the effective strength of the electron–lattice interaction, which is beneficial for pairing.

Keywords

Polarons Cuprates Double-well structure Diabatic representation 

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Copyright information

© The Author(s) 2009

Authors and Affiliations

  1. 1.Lawrence Berkeley National LaboratoryUniversity of CaliforniaBerkeleyUSA

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