Original Article
S.B.Ota
Abstract
The electron-phonon coupling constant ï¬ has been calculated for A15 compounds assuming the width of the ï‡12 band as 80 meV. ï¬ has been found to be inversely proportional to the molecular weight. Using the values of ï¬ the Coulomb pseudopotential ïÂÂÂ* has been found to be negative for YBa2Cu3O7-x.