Ferroelectricity in La1-xBixCrO3 solid solutions

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Abstract

New perovskite solid solutions of (1 - x)LaCrO3 - xBiCrO3 (0 ≤ x ≤ 0.35) are synthesized by solid state reactions at 1200°C. The substitution of Bi2O3 for La2O3 is found to improve the density of the ceramics. Ferroelectricity is discovered in La1 - xBixCrO3 by hysteresis loops displayed at 77 K, with the remanent polarization increasing as Bi3+ content increases. Its origin is attributed to the structural distortion induced by the stereochemically active Bi3+ ion on the A-site.

Original languageEnglish
Pages (from-to)175-177
Number of pages3
JournalFerroelectrics
Volume301
DOIs
StatePublished - 1 Jan 2004
Externally publishedYes

Keywords

  • Ceramic sintering
  • Ferroelectricity
  • Lanthanum bismuth chromite
  • Solid solutions
  • Solid-oxide fuel cells

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