Theory of the electrical transport in tilted layered superconductive Josephson junctions

TL;DR

This paper develops a theoretical model for electrical transport in tilted layered d-wave superconducting Josephson junctions, revealing an intrinsic resistance caused by plane misalignment with implications for understanding their transport properties.

Contribution

It introduces a novel theory accounting for intrinsic resistance due to plane misalignment in tilted layered d-wave Josephson junctions.

Findings

Intrinsic resistance arises from superconductive plane misalignment.

Misalignment affects the electric transport properties of the junctions.

The theory explains transport behavior in [100] tilt and tilt-tilt junctions.

Abstract

We present a theory of the Josephson effect in a twofold-tilted Josephson junction made by d-wave anisotropic layered superconductors. We find the appearance of an intrinsic electrical resistance that arises from the misalignment of the superconductive planes (the CuO_2 planes in YBCO) in the two electrodes. This intrinsic contribution to the tunnel barrier has several non-trivial consequences. The result is relevant for understanding the electric transport properties of [100] tilt and [100] tilt-tilt Josephson junctions based on d-wave superconductors.