• Electrical conductivity of ferroelectric sodium vanadate, rubidium vanadate, cesium vanadate and their solid solutions

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    • Keywords

       

      Ferroelectrics; conductivity; phase transition; activation energy; critical field

    • Abstract

       

      The d.c. electrical conductivity of sodium vanadate, rubidium vanadate, cesium vanadate and their solid solutions sodium-rubidium vanadate and sodium-cesium vanadate were studied by a two-probe method in the temperature range covering their transition points. The electrical conductivity shows sharp change at the phase transition temperature of these materials. In NaVO3, RbVO3 and CsVO3, increase in d.c. conductivity is observed in the ferroelectric region while nonlinearities are observed above transition temperatures. In solid solutions, the activation energy in the paraelectric state is higher than that in the ferroelectric state and depends upon sodium concentration.

    • Author Affiliations

       

      V V Patil1 A P Kashid1 2 SH Chavan1 3

      1. Department of Physics, Main Rajaram Jr. College, Kolhapur - 416 002, India
      2. Warana Mahavidyalaya, Warananagar - 416 113, India
      3. Department of Physics, Shivaji University, Kolhapur - 416 004, India
    • Dates

       
  • Bulletin of Materials Science | News

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