Eur. Phys. J. B 64, 87-94 (2008)
https://doi.org/10.1140/epjb/e2008-00274-x

Concentric circular arrays of Josephson junctions as dressed models of granular superconductors

DMI, Università degli Studi di Salerno, 84084 Fisciano (SA), Italy

Corresponding author: ^a rdeluca@unisa.it

Received: 28 February 2008
Revised: 21 June 2008
Published online: 16 July 2008

Abstract

An extended dressed Josephson network model is adopted to study the quantitative magnetic behaviour of three-dimensional granular systems. The model consists of a stack of collections of N concentric circular arrays of small identical Josephson junctions, each two adjacent elements of the stack being superconductively coupled by additional Josephson junctions. The low-field magnetic response of granular superconductors is simulated by means of the proposed model.