Tilt Grain-Boundary Effects in S- and D-Wave Superconductors
J. J. Hogan-O'Neill, A. M. Martin, James F. Annett
Abstract
We calculate the s- and d-wave superconductor order parameter in the vicinity of a tilt grain boundary. We do this self-consistently within the Bogoliubov de Gennes equations, using a realistic microscopic model of the grain boundary. We present the first self-consistent calculations of supercurrent flows in such boundaries, obtaining the current-phase characteristics of grain boundaries in both s-wave and d-wave superconductors.
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