Proximity effect in cuprate based superconductor-normal metal-superconductor junctions

P. K. Rout, R. K. Rakshit, R. C. Budhani

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

We report the Josephson coupling between optimally doped superconducting La1.85Sr0.15CuO4 through the normal metal barrier of La1.85Sr0.15Cu0.97Co0.03O4 (LSCCO). The critical current (Ic) across the junction exists even up to a barrier thickness of 50 nm. The barrier thickness dependence study of Ic yields a large coherence length in LSCCO of (15.2±1.4) nm at 5 K, which indicates the presence of giant proximity effect in such systems.

Original languageEnglish
Title of host publicationSolid State Physics - Proceedings of the 58th DAE Solid State Physics Symposium 2013
PublisherAmerican Institute of Physics Inc.
Pages1523-1525
Number of pages3
ISBN (Print)9780735412255
DOIs
StatePublished - 2014
Externally publishedYes
Event58th DAE Solid State Physics Symposium 2013 - Patiala, Punjab, India
Duration: 17 Dec 201321 Dec 2013

Publication series

NameAIP Conference Proceedings
Volume1591
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference58th DAE Solid State Physics Symposium 2013
Country/TerritoryIndia
CityPatiala, Punjab
Period17/12/1321/12/13

Keywords

  • Cuprate superconductors
  • Josephson effect
  • Proximity effect

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