Manifestation of π-contacts in magnetic field dependence of I - V characteristics for proximity-type 2D Josephson junction array

V. A.G. Rivera, S. Sergeenkov, E. Marega, F. M. Araújo-Moreira

Research output: Contribution to journalArticle

4 Scopus citations

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.
Original languageAmerican English
Pages (from-to)376-379
Number of pages4
JournalPhysics Letters, Section A: General, Atomic and Solid State Physics
DOIs
StatePublished - 28 Dec 2009
Externally publishedYes

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