Conductive polymer / high-Tc superconductor bilayer structures

John T. McDevitt, Chris E. Jones, Steven G. Haupt, Jianai Zhao, Rung Kuang Lo

Research output: Contribution to journalArticlepeer-review

Abstract

Electrochemical techniques are exploited to fabricate conductive polymer/high-Tc superconductor bilayer structures. Scanning electron microscopy, x-ray fluorescence and electrochemical techniques are utilized to characterize the electrodeposition of polypyrrole layers grown onto oriented YBa2Cu3O7 thin films. In such hybrid polymer/superconductor systems, it is found that when the polymer is oxidized to its conductive state, the transition temperature (Tc) and critical current (Jc) of the underlying superconductor film are suppressed. Here described are new methods for the fabrication of superconductor thin film layers which possess multiple points of weak electrical contact. Such weak links are very susceptible to the influence of external forces making them well suited for the creation of hybrid polymer/superconductor structures. Moreover, measurements recorded as a function of temperature of the polymer/superconductor interface resistance show dramatic decreases in resistivity at Tc. Collectively, these results are consistent with observations of conductive polymer proximity effects.

Original languageEnglish (US)
Pages (from-to)1319-1322
Number of pages4
JournalSynthetic Metals
Volume85
Issue number1-3
DOIs
StatePublished - Mar 15 1997

Keywords

  • Hybrid device
  • Proximity superconductor

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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