78 citations · 425 across the 15 of their papers we have counts for
13 papers · 1 filter
Electrodynamics of highly spin-polarized tunnel Josephson junctions
H. G. Ahmad, R. Caruso, A. Pal +5
The continuous development of superconducting electronics is encouraging several studies on hybrid Josephson junctions (JJs) based on superconductor/ferromagnet/superconductor (SFS…
Electrodynamics of Josephson junctions containing strong ferromagnets
D. Massarotti, N. Banerjee, R. Caruso +3
Triplet supercurrents in multilayer ferromagnetic Josephson junctions with misaligned magnetization can penetrate thicker ferromagnetic barriers compared to the singlet component.…
Macroscopic quantum tunneling in spin filter ferromagnetic Josephson junctions
D. Massarotti, A. Pal, G. Rotoli +3
The interfacial coupling of two materials with different ordered phases, such as a superconductor (S) and a ferromagnet (F) is driving new fundamental physics and innovative applic…
Resolving the effects of frequency dependent damping and quantum phase diffusion in YBaCuO Josephson junctions
D. Stornaiuolo, G. Rotoli, D. Massarotti +4
We report on the study of the phase dynamics of high critical temperature superconductor Josephson junctions. We realized YBaCuO (YBCO) grain boundary (GB) biepitax…
Direct transition from quantum escape to phase diffusion regime in YBaCuO biepitaxial Josephson Junctions
Luigi Longobardi, Davide Massarotti, Daniela Stornaiuolo +4
Dissipation encodes interaction of a quantum system with the environment and regulates the activation regimes of a Brownian particle. We have engineered grain boundary biepitaxial…
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…
On wireless connection between Josephson qubits
Sergei Sergeenkov, Giacomo Rotoli
By attributing a circulating Josephson current induced diamagnetic moment to a SQUID-type three-level qubit, a wireless connection between such qubits is proposed based only on dip…
Thermal expansion of Josephson junctions as an elastic response to an effective stress field
S. Sergeenkov, G. Rotoli, G. Filatrella +1
By introducing a concept of thermal expansion (TE) of a Josephson junction as an elastic response to an effective stress field, we study (both analytically and numerically) the tem…
Observation of a New Fluxon Resonant Mechanism in Annular Josephson Tunnel Structures
C. Nappi, M. P. Lisitskiy, G. Rotoli +2
A novel dynamical state has been observed in the dynamics of a perdurbed sine-Gordon system. This resonant state, has been experimentally observed as a singularity in the dc curren…
Induced paramagnetic states by localized -loops in grain boundaries
Giacomo Rotoli
Recent experiments on high-temperature superconductors show paramagnetic behavior localized at grain boundaries (GB). This paramagnetism can be attributed to the presence unconvent…
Paramagnetic and diamagnetic states in two-dimensional Josephson-junction arrays
Cinzia De Leo, Giacomo Rotoli
Many experiments on high-temperature superconductors have shown paramagnetic behavior when the sample is field cooled. The paramagnetism was first attributed to a d-wave order para…
Mutual Inductance Route to Paramagnetic Meissner Effect in 2D Josephson Junction Arrays
Cinzia De Leo, Giacomo Rotoli, Paola Barbara +2
We simulate two-dimensional Josephson junction arrays, including full mutual- inductance effects, as they are cooled below the transition temperature in a magnetic field. We show n…