PROPERTIES OF SUPERCONDUCTING ALLOYS CONTAINING PARAMAGNETIC IMPURITIES WITH LOCAL STATES WITHIN GAP

Several properties of superconducting alloys containing paramagnetic impurities are calculated for the case when, even for a very low concentration of impurities, quasi-particle states at energies much less than DELTA ( alpha , T) are present. The present calculations are important because, whenever magnetic impurities are introduced in a superconductor, the time-reversal symmetry of the conduction electrons system is broken and the above quasi-particle states always appear.