Bulletin of Materials Science

, Volume 17, Issue 7, pp 1287–1297

Growth and applications of superconducting and nonsuperconducting oxide epitaxial films

  • M S Hegde
Article

DOI: 10.1007/BF02747227

Cite this article as:
Hegde, M.S. Bull. Mater. Sci. (1994) 17: 1287. doi:10.1007/BF02747227
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Abstract

Growth and characterization of high-temperature-superconducting YBa2Cu3O7 and several metallic-oxide thin films by pulsed laser deposition is described here. An overview of substrates employed for epitaxial growth of perovskite-related oxides is presented. Ag-doped YBa2Cu3O7 films grown on bare sapphire are shown to giveTc=90 K, critical current >106 A/cm2 at 77 K and surface resistance =450µΩ. Application of epitaxial metallic LaNiO3 thin films as an electrode for ferroelectric oxide and as a normal metal layer barrier in the superconductor-normal metal-superconductor (SNS) Josephson junction is presented. Observation of giant magnetoresistance (GMR) in the metallic La0·6Pb0·4MnO3 thin films up to 50% is highlighted.

Keywords

Epitaxial thin filmsmetallic oxideshigh-Tc filmsSNS junctionLaNiO3La1−xPbxMnO3ferroelectric oxidesferromagnetic oxides

Copyright information

© the Indian Academy of Sciences 1994

Authors and Affiliations

  • M S Hegde
    • 1
  1. 1.Solid State and Structural Chemistry UnitIndian Institute of ScienceBangaloreIndia