Tunnel Spectroscopy In Nb/biscco Point Contact Junctions

Authors :: Luigi Maritato
A. Di Chiara
U. Scotti di Uccio
Antonio Barone
G. Paterno
Giovanni Piero Pepe
G. Peluso
F. Fontana
A., Barone
A., Dichiara
F., Fontana
G., Paterno
L., Maritato
Peluso, Giuseppe
Pepe, GIOVANNI PIERO
SCOTTI DI UCCIO, Umberto
Barone, A.
Di Chiara, A.
Fontana, F.
Paterno, G.
Maritato, L.
Pepe, G.
Publication Year :: 1989
Publisher :: Ieee-inst Electrical Electronics Engineers Inc, 1989.
Abstract: Results concerning Nb/BiSCCO point contact junctions (PCJs) are presented. I-V (current voltage) and (dV/dI)-V measurements were performed at various temperatures and contact pressures. Differential resistance measurements performed by a standard modulation technique exhibits structures which can be related to the energy gap of BiSCCO. Features of the derivative plots are discussed in connection with models proposed previously for similar junctions. Nb-Nb PCJs based on sintered pellets of granular Nb have been investigated for comparison. >