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    • SH Chavan

      Articles written in Bulletin of Materials Science

    • Volume 12 Issue 2 July 1989 pp 101-106

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

      V V Patil A P Kashid SH Chavan

      More Details Abstract Fulltext PDF

      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.

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