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
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.
PACS: 74.50.+r – Tunneling phenomena; point contacts, weak links, Josephson effects / 74.81.Fa – Josephson junction arrays and wire networks / 74.81.Bd – Granular, melt-textured, amorphous, and composite superconductors
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2008
