LOW-TEMPERATURE PROPERTIES OF ANISOTROPIC SUPERCONDUCTORS WITH KONDO IMPURITIES

We present a self-consistent theory of superconductors in the presence of Kondo impurities, using large-N slave-boson methods to treat the i mpurity dynamics. The technique is tested on the s-wave case and shown to give good results compared to other methods for T(K) > T(c). We ca lculate low temperature thermodynamic and transport properties for var ious superconducting states, including isotropic s-wave and representa tive anisotropic model states with line and point nodes on the Fermi s urface.