Ia. Chaban, HEAT-CAPACITY OF HIGH-TEMPERATURE SUPERCONDUCTORS - ANALYSIS WITHIN THE FRAMEWORK OF THE IMPURITY MECHANISM, Journal of superconductivity, 8(2), 1995, pp. 279-285
The impurity mechanism proposed earlier is used to interpret the heat
properties of high-temperature superconductors. The expression for the
heat-capacity jump describing its temperature and magnetic field depe
ndences is obtained. An explanation of the dependence of the Sommerfel
d constant on the stoichiometric composition is proposed.