Phase and vortex dynamics in Josephson junction arrays with percolative disorder

Authors
Affolter, J Eichenberger, A Rosse, S Scheuzger, P Leemann, C Martinoli, P
Citation
J. Affolter et al., Phase and vortex dynamics in Josephson junction arrays with percolative disorder, PHYSICA B, 280(1-4), 2000, pp. 241-242
Citations number
5
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICA B
ISSN journal
09214526 → ACNP
Volume
280
Issue
1-4
Year of publication
2000
Pages
241 - 242
Database
ISI
SICI code
0921-4526(200005)280:1-4<241:PAVDIJ>2.0.ZU;2-H
Abstract
The AC conductance G of site-diluted Josephson junction arrays close to the percolation threshold was studied over a broad frequency range. As a funct ion of frequency, G exhibits a crossover from a low-frequency Euclidean to a high-frequency fractal regime. At low-frequency the response is dominated by vortices and its temperature dependence is well-described by dynamical extensions of the Kosterlitz-Thouless theory for two-dimensional systems. ( C) 2000 Elsevier Science B.V. All rights reserved.