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 language||American English|
|Number of pages||4|
|Journal||Physics Letters, Section A: General, Atomic and Solid State Physics|
|State||Published - 28 Dec 2009|
Rivera, V. A. G., Sergeenkov, S., Marega, E., & Araújo-Moreira, F. M. (2009). Manifestation of π-contacts in magnetic field dependence of I - V characteristics for proximity-type 2D Josephson junction array. Physics Letters, Section A: General, Atomic and Solid State Physics, 376-379. https://doi.org/10.1016/j.physleta.2009.11.010