ELECTRON SCATTERING RATE AND T_c OF CUPRATE SUPERCONDUCTORS

摘要

Electron scattering rate 1/#tau#(T) and transition temperature T_c of cuprate superconductors are studied by using a distorted wave approximation. It is found that with reasonable values of energy and density of states parameters, h/ #tau# (T) approx k_BT, and T_c shows a nearly parabolic variation with carrier density. Both of these results agree reasonably well with observed behaviour of #tau#(T) and T_c in cuprates.