Josephson current in ballistic heterostructures with spin-active interfaces
Josephson current in ballistic heterostructures with spin-active interfaces
We develop a general microscopic theory of dc Josephson effect in hybrid superconductor--normal-metal--superconductor structures with ballistic electrodes and spin-active normal-metal--superconductor (NS) interfaces. We establish a direct relation between the spectrum of Andreev levels and the Josephson current which contains complete information about nontrivial interplay between Andreev reflection and spin-dependent interface …