Scientific article
OA Policy
English

Tuning the Influence of Microscopic Decoherence on the Superconducting Proximity Effect in a Graphene Andreev Interferometer

Published inPhysical review letters, vol. 112, no. 12, 126803
Publication date2014
Abstract

We discuss transport measurements through graphene Andreev interferometers exhibiting reentrance of the superconducting proximity effect. We observe that at high gate voltage (VBG) the energy dependence of the Andreev conductance oscillations exhibits a scaling in agreement with theoretical expectations, which breaks down at low VBG, when the Fermi energy approaches the charge neutrality point. The phenomenon is a manifestation of single particle dephasing that increasingly limits the propagation of superconducting correlations away from the superconductor-graphene interface. Our work addresses the interplay between microscopic decoherence and superconductivity, and shows that graphene provides a useful experimental platform to investigate unexplored regimes and phenomena in the superconducting proximity effect.

Research groups
Citation (ISO format)
DEON, Fabio, SOPIC, Sandra, MORPURGO, Alberto. Tuning the Influence of Microscopic Decoherence on the Superconducting Proximity Effect in a Graphene Andreev Interferometer. In: Physical review letters, 2014, vol. 112, n° 12, p. 126803. doi: 10.1103/PhysRevLett.112.126803
Main files (1)
Article (Published version)
accessLevelPublic
Identifiers
Journal ISSN0031-9007
761views
368downloads

Technical informations

Creation03/10/2014 15:28:00
First validation03/10/2014 15:28:00
Update time14/03/2023 21:49:12
Status update14/03/2023 21:49:12
Last indexation30/10/2024 20:13:44
All rights reserved by Archive ouverte UNIGE and the University of GenevaunigeBlack