Relationship between elastic and superconducting properties of high-Tc superconductors
Zverev V. M. , Silin V. P. , Uryupin S. A.
By incorporating the dependence of the elastic properties of the high-Tc superconductors on the order parameter, one can explain the deviations from the BCS theory which are observed in the high-7^ superconductors in terms of the jump in the specific heat, the isotope effect, and the ratio of the superconducting gap to the superconducting transition temperature.