Quantum superconductor-metal transition in a proximity array
arXiv:cond-mat/0010402 · doi:10.1103/PhysRevLett.86.1869
Abstract
A theory of the zero-temperature superconductor-metal transition is developed for an array of superconductive islands (of size d) coupled via a disordered two-dimensional conductor with the dimensionless conductance g>>1. At T=0 macroscopically superconductive state of the array with the lattice spacing b>>d is destroyed at g < g_c \approx 0.1 ln^2(b/d). At high temperatures the normal-state resistance between neighboring islands at b=b_c is much smaller than h/4e^2.
RevTeX, 7 pages, 2 eps figures