TY - JOUR
T1 - Manifestation of π-contacts in magnetic field dependence of I - V characteristics for proximity-type 2D Josephson junction array
AU - Rivera, V. A.G.
AU - Sergeenkov, S.
AU - Marega, E.
AU - Araújo-Moreira, F. M.
N1 - Funding Information:
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.
PY - 2009/12/28
Y1 - 2009/12/28
N2 - 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.
AB - 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.
KW - Current-voltage characteristics
KW - Josephson junction arrays
KW - Proximity effect
KW - π-type Josephson contacts
UR - http://www.scopus.com/inward/record.url?scp=72149117111&partnerID=8YFLogxK
U2 - 10.1016/j.physleta.2009.11.010
DO - 10.1016/j.physleta.2009.11.010
M3 - Artículo
AN - SCOPUS:72149117111
SN - 0375-9601
VL - 374
SP - 376
EP - 379
JO - Physics Letters, Section A: General, Atomic and Solid State Physics
JF - Physics Letters, Section A: General, Atomic and Solid State Physics
IS - 2
ER -