TY - JOUR
T1 - Field induced KosterlitzThouless transition in two-dimensional array of Nb- AlOx-Nb Josephson junctions
AU - Sergeenkov, S.
AU - Rivera, V. A.G.
AU - Marega, E.
AU - Araujo-Moreira, F. M.
N1 - Funding Information:
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.
PY - 2011/6
Y1 - 2011/6
N2 - 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.
AB - 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.
KW - D. Currentvoltage characteristics
KW - D. Differential magnetoresistance
KW - D. Josephson junction arrays
KW - D. KosterlitzThouless transition
UR - http://www.scopus.com/inward/record.url?scp=79955917683&partnerID=8YFLogxK
U2 - 10.1016/j.ssc.2011.03.033
DO - 10.1016/j.ssc.2011.03.033
M3 - Artículo
AN - SCOPUS:79955917683
SN - 0038-1098
VL - 151
SP - 892
EP - 894
JO - Solid State Communications
JF - Solid State Communications
IS - 12
ER -