Tunnel spectroscopy of a proximity Josephson junction

Loading...
Thumbnail Image

Access rights

openAccess
publishedVersion

URL

Journal Title

Journal ISSN

Volume Title

A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

Date

2011-12-09

Major/Subject

Mcode

Degree programme

Language

en

Pages

5
1-5

Series

PHYSICAL REVIEW B, Volume 84, issue 21

Abstract

We present tunnel spectroscopy experiments on the proximity effect in lateral superconductor–normal-metal–superconductor Josephson junctions. Our weak link is embedded into a superconducting ring allowing phase biasing of the Josephson junction by an external magnetic field. We explore the temperature and phase dependence of both the induced minigap and the modification of the density of states in the normal metal. Our results agree with a model based on the quasiclassical theory in the diffusive limit. The device presents an advanced version of the superconducting quantum interference proximity transistor, now reaching flux sensitivities of 3 nA/Φ0, where Φ0 is the flux quantum.

Description

Keywords

Josephson junction, tunnel spectroscopy

Other note

Citation

Meschke , M , Peltonen , J T , Pekola , J P & Giazotto , F 2011 , ' Tunnel spectroscopy of a proximity Josephson junction ' , Physical Review B , vol. 84 , no. 21 , 214514 , pp. 1-5 . https://doi.org/10.1103/PhysRevB.84.214514