Conductive polymer switch for controlling superconductivity

John T. McDevitt, Steven G. Haupt, David R. Riley, Jianai Zhao, Christopher T. Jones

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Methods for preparing conductive polymer/superconductor sandwich devices consisting of polypyrrole coated YBa2Cu3O7 -δ microbridges are described. Electrochemical procedures are utilized to alter the oxidation state of the polymer and, in doing so, it is found for the first time that superconductivity (i.e. Tc and Jc) can be modulated in a controllable and reproducible fashion by the polymer layer. Whereas neutral (insulating) polypyrrole only slightly influences the electrical properties of the underlying YBa2Cu3O7-δ film, the oxidized (conductive) polymer depresses Tc by 15K and Jc by 40%. Therefore a new type of conducting polymer switch for controlling superconductivity is demonstrated.

Original languageEnglish (US)
Title of host publicationProceedings of the Annual Conference on Engineering in Medicine and Biology
EditorsAndrew Y.J. Szeto, Rangaraj M. Rangayyan
PublisherPubl by IEEE
Pages1526-1527
Number of pages2
Editionpt 3
ISBN (Print)0780313771
StatePublished - 1993
EventProceedings of the 15th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. Part 3 (of 3) - San Diego, CA, USA
Duration: Oct 28 1993Oct 31 1993

Publication series

NameProceedings of the Annual Conference on Engineering in Medicine and Biology
Numberpt 3
Volume15
ISSN (Print)0589-1019

Other

OtherProceedings of the 15th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. Part 3 (of 3)
CitySan Diego, CA, USA
Period10/28/9310/31/93

ASJC Scopus subject areas

  • Signal Processing
  • Biomedical Engineering
  • Computer Vision and Pattern Recognition
  • Health Informatics

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