Superconductivity and
superconducting devices

Born under the supervision of Prof. Antonio Barone, the superconductivity group in Napoli mainly focused on the study of the Josephson effect in a variety of superconducting devices: from conventional systems made of low critical temperature Superconducting electrodes and Insulating barriers (SIS Josephson junctions), up to more exotic geometries and devices including in the picture more unconventional materials, among the others high – temperature superconductors and ferromagnetic barriers, providing an experimental playground for different problems in condensed matter physics where competiting order parameters coexist.

Since then, the group has fostered such expertise in finding novel superconducting devices for specific engineering applications, including quantum technologies. One of our main focus is the study of the transport properties of Josephson devices down to ultra – low temperatures as a function of several external parameters (magnetic field, microwaves …), and the phase – dynamics of Josephson and mesa/nano superconducting devices, which provides an experimental footprint of the impact of intrinsic or environmental noise and dissipation, and allows to quantify and test the feasibility of such systems into highly – coherent quantum circuits, or in highly – sensitive detection systems. This requires sophisticated filtered cryogenic electronics, specifically to access the macroscopic quantum tunneling regime.

superconducting devices
superconducting devices
superconducting devices
superconducting devices