Table of Contents
Indian Journal of Materials Science
Volume 2014 (2014), Article ID 590928, 7 pages
http://dx.doi.org/10.1155/2014/590928
Research Article

The Role of Polarons in Cuprates Hi- Superconductivity

Department of Physics, University of Calabar, PMB 1115, Calabar, Nigeria

Received 20 October 2013; Accepted 16 January 2014; Published 10 March 2014

Academic Editors: U. De and C. K. Mukhopadhyay

Copyright © 2014 M. I. Umo. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The phonon contribution to the phenomenon of high temperature superconductivity in the cuprates is argued as being masked as polarons generated by the polarization of the charge reservoir accompanying the Jahn-Teller tilting of the apical oxygen. We discuss the Mahan oscillator-spring extension model as an analogy to the charge reservoir-CuO plane -axis polarons. Using the Boltzmann kinetic equation, we show that the polaron dissociates or collapses at a temperature corresponding to the critical temperature of the superconductor.