Title
Manifestation of π-contacts in magnetic field dependence of I - V characteristics for proximity-type 2D Josephson junction array
Date Issued
28 December 2009
Access level
metadata only access
Resource Type
journal article
Author(s)
Universidad Federal de Sao Carlos
Publisher(s)
Elsevier
Abstract
Results on the temperature and magnetic field dependence of current-voltage characteristics (CVC) are presented for SNS-type 2D ordered array of Nb-Cu0.95Al0.05-Nb junctions. The critical current IC (T, H) and the power exponent a (T, H) = 1 + Φ0 IC (T, H) / 2 kB T of the nonlinear CVC law V = R [I - IC (T, H)]a (T, H) are found to have a maximum at non-zero value of applied magnetic field Hp = 225 Oe, which is attributed to manifestation of π-type Josephson contacts in our sample. © 2009 Elsevier B.V. All rights reserved.
Start page
376
End page
379
Volume
374
Issue
2
Language
English
OCDE Knowledge area
Termodinámica
Ingeniería eléctrica, Ingeniería electrónica
Subjects
Scopus EID
2-s2.0-72149117111
Source
Physics Letters, Section A: General, Atomic and Solid State Physics
ISSN of the container
03759601
Sponsor(s)
We are very grateful to R.S. Newrock, P. Barbara and C.J. Lobb for helpful discussions and for providing SNS samples. This work has been financially supported by the Brazilian agencies CNPq, CAPES and FAPESP.
Fundação de Amparo à Pesquisa do Estado de São Paulo - FAPESP
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES
Conselho Nacional de Desenvolvimento Científico e Tecnológico - CNPq
Sources of information:
Directorio de Producción Científica
Scopus