Novel magnetoinductance effects in Josephson Junction Arrays: A single-plaquette approximation

TL;DR

This paper predicts new magnetoinductance effects in Josephson junction arrays using a single-plaquette model, including steps in magnetic susceptibility influenced by vortex dynamics, with implications for experimental observation.

Contribution

It introduces a novel theoretical prediction of magnetoinductance effects and susceptibility steps in JJAs based on a simplified single-plaquette approximation.

Findings

Prediction of susceptibility steps controlled by kinetic inductance

Field dependence governed by Abrikosov vortices

Discussion of experimental conditions for observing effects

Abstract

Using a single-plaquette approximation, novel magnetoinductance effects in Josephson junction arrays (JJAs) are predicted, including the appearance of steps in the temperature behavior of magnetic susceptibility. The number of steps (as well as their size) is controlled by the kinetic inductance of the plaquette whose field dependence is governed by the Abrikosov vortices penetrating superconducting regions of the array. The experimental conditions under which the predicted effects should manifest themselves in artificially prepared JJAs are discussed.