What happens in Josephson junctions at high critical current densities
Journal article, 2017

The impressive advances in material science and nanotechnology are more and more promoting the use of exotic barriers and/or superconductors, thus paving the way to new families of Josephson junctions. Semiconducting, ferromagnetic, topological insulator and graphene barriers are leading to unconventional and anomalous aspects of the Josephson coupling, which might be useful to respond to some issues on key problems of solid state physics. However, the complexity of the layout and of the competing physical processes occurring in the junctions is posing novel questions on the interpretation of their phenomenology. We classify some significant behaviors of hybrid and unconventional junctions in terms of their first imprinting, i.e. current-voltage curves, and propose a phenomenological approach to describe some features of junctions characterized by relatively high critical current densities Jc. Accurate arguments on the distribution of switching currents will provide quantitative criteria to understand physical processes occurring in high-Jc junctions. These notions are universal and apply to all kinds of junctions. PACS: 74.72.-h Cuprate superconductors; 85.25.Cp Josephson devices; 74.50.+r Tunneling phenomena; Josephson effects.

Vortex flow

Phase dynamics

Josephson junctions

Hybrid devices

Author

D. Massarotti

Universita degli Studi di Napoli Federico II

Superconductors, oxides and other innovative materials and devices

D. Stornaiuolo

Superconductors, oxides and other innovative materials and devices

Universita degli Studi di Napoli Federico II

P. Lucignano

Superconductors, oxides and other innovative materials and devices

Universita degli Studi di Napoli Federico II

R. Caruso

Universita degli Studi di Napoli Federico II

Superconductors, oxides and other innovative materials and devices

luca galletti

Chalmers, Microtechnology and Nanoscience (MC2), Quantum Device Physics

Domenico Montemurro

Chalmers, Microtechnology and Nanoscience (MC2), Quantum Device Physics

B. Jouault

Laboratoire Charles Coulomb

G. Campagnano

Superconductors, oxides and other innovative materials and devices

Universita degli Studi di Napoli Federico II

H. F. Arani

Universita degli Studi di Napoli Federico II

Imam Khomeini International University

L. Longobardi

American Physical Society

L. Parlato

Superconductors, oxides and other innovative materials and devices

Universita degli Studi di Napoli Federico II

G. P. Pepe

Superconductors, oxides and other innovative materials and devices

Universita degli Studi di Napoli Federico II

G. Rotoli

Università della Campania Luigi Vanvitelli

A. Tagliacozzo

Universita degli Studi di Napoli Federico II

Superconductors, oxides and other innovative materials and devices

Floriana Lombardi

Chalmers, Microtechnology and Nanoscience (MC2), Quantum Device Physics

F. Tafuri

Universita degli Studi di Napoli Federico II

Superconductors, oxides and other innovative materials and devices

Fizika Nizkih Temperatur

0132-6414 (ISSN) 1816-0328 (eISSN)

Vol. 43 7 1023-1031

Subject Categories

Condensed Matter Physics

More information

Latest update

4/11/2018