Title
Field induced KosterlitzThouless transition in two-dimensional array of Nb- AlOx-Nb Josephson junctions
Date Issued
01 June 2011
Access level
metadata only access
Resource Type
journal article
Author(s)
Universidad de Sao Paulo
Abstract
We present recent results on the magnetic field dependence of currentvoltage characteristics (CVC) for an artificially prepared two-dimensional array of unshunted NbAlOxNb Josephson junctions. The results obtained from the measured CVC and critical current IC(T,H) differential magnetoresistance (DMR) R(T,H)=[dVdI]I=IC(T,H) of the array are found to exhibit behavior compatible with field induced KosterlitzThouless transition describing unbinding of vortexantivortex pairs under applied magnetic field. © 2011 Elsevier Ltd. All rights reserved.
Start page
892
End page
894
Volume
151
Issue
12
Language
English
OCDE Knowledge area
Termodinámica
Subjects
Scopus EID
2-s2.0-79955917683
Source
Solid State Communications
ISSN of the container
00381098
Sponsor(s)
We are indebted to R.S. Newrock, P. Barbara and C.J. Lobb for helpful discussions and for providing SIS samples. This work has been financially supported by the Brazilian agencies CNPq, CAPES and FAPESP.
Sources of information:
Directorio de Producción Científica
Scopus