58 citations · 186 across the 12 of their papers we have counts for
12 papers
Quantum crossover in moderately damped epitaxial NbN/MgO/NbN junctions with low critical current density
Luigi Longobardi, Davide Massarotti, Giacomo Rotoli +6
High quality epitaxial NbN/MgO/NbN Josephson junctions have been realized with MgO barriers up to a thickness of d=1 nm. The junction properties coherently scale with the size of b…
Thermal hopping and retrapping of a Brownian particle in the tilted periodic potential of a NbN/MgO/NbN Josephson junction
Luigi Longobardi, Davide Massarotti, Giacomo Rotoli +6
We report on the occurrence of multiple hopping and retrapping of a Brownian particle in a tilted washboard potential. The escape dynamic has been studied experimentally by measuri…
Macroscopic Quantum Tunneling and the "cosmic" Josephson effect
A. Barone, M. Gasperini, G. Rotoli
We discuss the possible influence of a cosmic magnetic field on the macroscopic quantum tunneling process associated, in a cosmological context, to the decay of the "false vacuum."…
Mesoscopic conductance fluctuations in YBaCuO grain boundary Junction at low temperature
A. Tagliacozzo, F. Tafuri, E. Gambale +7
The magneto-conductance in YBCO grain boundary Josephson junctions, displays fluctuations at low temperatures of mesoscopic origin. The morphology of the junction suggests that tra…
The effect of Magnetic Field on MQT Escape Time in "Small" Josephson Junctions
Yu. N. Ovchinnikov, A. Barone, A. A. Varlamov
We study the phenomenon of macroscopic quantum tunneling (MQT) in a finite size Josephson junction (JJ) with an externally applied magnetic field. As it is well known, the problem…
Macroscopic quantum tunneling in "small" Josephson junctions in magnetic field
Yu. N. Ovchinnikov, A. Barone, A. A. Varlamov
We study the phenomenon of macroscopic quantum tunneling (MQT) in small Josephson junctions (JJ) with an externally applied magnetic field. The latter results in the appearance of…