Affiliation:
1. King’s College, Cambridge University, Cambridge CB2 1ST, UK
Abstract
A new McMillan formula is assembled for the High Temperature Superconductors that evidences strong coupling in these materials. The McMillan-Hopfield parameter is calculated in each case, in addition to the Bergmann and Rainer enhancement frequency. The cubic symmetry of the CuO layers and the lattice cohesion and oxygen presence are suggested reasons for the effect.
Subject
General Earth and Planetary Sciences,General Engineering,General Environmental Science