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 language | English |
|---|---|
| Pages (from-to) | 175-177 |
| Number of pages | 3 |
| Journal | Ferroelectrics |
| Volume | 301 |
| DOIs | |
| State | Published - 1 Jan 2004 |
| Externally published | Yes |
Keywords
- Ceramic sintering
- Ferroelectricity
- Lanthanum bismuth chromite
- Solid solutions
- Solid-oxide fuel cells