• DocumentCode
    3035999
  • Title

    Ferroelectric-type anomalies in high-Tc heterogeneous superconductors

  • Author

    Kharitonov, E.V.

  • Author_Institution
    Positron Res. & Manufacturing Corp., Leningrad, USSR
  • fYear
    1990
  • fDate
    6-8 Jun 1990
  • Firstpage
    363
  • Lastpage
    366
  • Abstract
    In the effective medium approximation it is shown that a ferroelectric-type dielectric anomaly (∈⇒∞) takes place in percolative heterogeneous superconductors near the critical point of the smeared transition. The calculation was confirmed with experimental data on the temperature behavior of dielectric susceptibility for La1.8Sr0.2CuO4 ceramics. For the three-phase superconductor-metal-dielectric system, phase diagrams are calculated in the temperature-dielectric phase-concentration coordinates
  • Keywords
    ceramics; ferroelectric materials; high-temperature superconductors; lanthanum compounds; optical susceptibility; strontium compounds; La1.8Sr0.2CuO4 ceramics; critical point; ferroelectric-type dielectric anomaly; high temperature superconductor; percolative heterogeneous superconductors; smeared transition; temperature-dielectric phase-concentration coordinates; three-phase superconductor-metal-dielectric system; Conductivity; Crystals; Dielectrics; Equations; High temperature superconductors; Polarization; Superconducting transition temperature; Superconductivity; Temperature dependence; Temperature distribution;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Applications of Ferroelectrics, 1990., IEEE 7th International Symposium on
  • Conference_Location
    Urbana-Champaign, IL
  • Print_ISBN
    0-7803-0190-0
  • Type

    conf

  • DOI
    10.1109/ISAF.1990.200262
  • Filename
    200262
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=3035999