M. Sardar et D. Sa, EFFECT OF SINGLE-PARTICLE HOPPING AND OUT-OF-PLANE MAGNETIC IMPURITY ON COUPLED PLANAR SUPERCONDUCTORS, Modern physics letters B, 9(11-12), 1995, pp. 737-745
It is shown that the single particle band motion along the c axis is h
armful for superconductivity in anisotropic systems. Variation of T-c
with c axis hopping parameter is shown for both the conventional Josep
hson coupled, planar superconductors and for interlayer pair tunneling
mechanism of Wheatley, Hsu, and Anderson (WHA). Effect of out-of-plan
e magnetic impurity substitution is shown to suppress T-c more for con
ventional superconductors whereas there is a very sharp decrease of T-
c in the WHA mechanism at larger concentrations.