On piezophase effects in mechanically loaded atomic scale Josephson junctions

TL;DR

This paper investigates how external stress influences atomic-scale Josephson junctions, predicting observable quasi-periodic patterns in stress-strain and stress-current relationships in defected crystals, advancing understanding of piezophase effects.

Contribution

It introduces a dislocation-based model for stress effects in atomic Josephson junctions, predicting measurable quasi-periodic patterns in stress-strain and stress-current behaviors.

Findings

Predicted quasi-periodic stress-strain patterns.

Predicted quasi-periodic stress-current patterns.

Applicable to defected crystals under realistic stresses.

Abstract

The response of an intrinsic Josephson contact to externally applied stress is considered within the framework of the dislocation-induced atomic scale Josephson effect. The predicted quasi-periodic (Fraunhofer-like)stress-strain and stress-current patterns should manifest themselves for experimentally accessible values of applied stresses in intrinsically defected (e.g.,twinned) crystals.