
%0 Journal Article
%T The Energy Dependence Of The Effective Interaction In Superconductivity
%J Australian Journal of Physics
%D 1966/08/01
%V 19
%N 4
%P 509-518
%K 
%R https://doi.org/10.1071/PH660509
%U https://www.publish.csiro.au/paper/PH660509 
%X The effective interaction in the BCS model of superconductivity is usually approximated by a constant. We expand the interaction in a power series in <k/llw and treat the energy-dependent terms to first order. This introduces one more parameter in the theory. The gap, which now becomes energy dependent, is obtained by solving an integral equation by iteration. The critical field and specific heat are calculated. The value of 2~(0,0)/kBTe and the jump in the electronic specific heat at the critical temperature Te are now dependent on the parameters of the superconductor. Calculated values for the energy gap and the critical field He agree rather well with the experimental data. 
