McMillan tunneling model of the superconducting proximity effect. Specific heat jump

The McMillan tunneling model of the superconducting proximity effect has been used to calculate the specific heat jumps on the S side and on the N side of a proximity composite. The case of the BCS interaction constant on the N side, lambda/sub N/ being identically zero and the case of lambda/sub N/not =0 have both been studied. The detailed dependence of the normalized specific heat jumps on the McMillan parameters GAMMA/sub s/ and GAMMA/sub N/ and on the transition temperature of the composite has been computed. A reasonable agreement between our theoretical values and recent experimental data of Brevolo et al. is obtained