PZT-like structural phase transitions in the BiFeO3-KNbO3 solid solution.

@article{Lennox2015PZTlikeSP,
  title={PZT-like structural phase transitions in the BiFeO3-KNbO3 solid solution.},
  author={Robert Christopher Lennox and Daniel D. Taylor and Laura J. Vera Stimpson and Gavin B. G. Stenning and Marek Jura and Mark C. Price and Efrain E. Rodriguez and Donna C. Arnold},
  journal={Dalton transactions},
  year={2015},
  volume={44 23},
  pages={
          10608-13
        }
}
Despite the high prominence of the perovskites BiFeO(3) and KNbO(3) the solid solution between the two has received little attention. We report a detailed neutron and synchrotron X-ray powder diffraction, and Raman spectroscopy study which demonstrates an R3c→P4mm→Amm2 series of structural phase transitions similar to that exhibited by the PbZrO(3)-PbTiO(3) solid solution. 
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Crystal Structure, Phase Transitions and Photoferroelectric Properties of KNbO3-Based Lead-Free Ferroelectric Ceramics: A Brief Review
Ferroelectric KNbO3 (KN) ceramics were first fabricated in the 1950s, however, their use in commercial technical applications has been hampered by inherently challenging processing difficulties. In…
Processing-composition-structure effects on the optical band gap of KNbO3-based ceramics
This present work is focused on band-gap engineering of solid-solutions based on KNbO3, which was proposed as a promising photoferroelectric (Grinberg et al., 2013). The strategy to narrow the…
Optimisation of functional properties in lead-free BiFeO3–BaTiO3 ceramics through La3+ substitution strategy
The paper is concerned with the structure and functional properties of bismuth ferrite–barium titanate, 0.75BiFeO3–0.25BaTiO3, solid solutions. Such materials are attracting attention due to their…
Photoresponse of KNbO3–AFeO3 (A = Bi3+ or La3+) ceramics and its relationship with bandgap narrowing
Effect of Preheating Temperature on Synthesis of Pure BiFeO3 via Sol–Gel Method
BiFeO3 (BFO) nanopowder was synthesized in a pure form via a sol- gel method based on glycol gel reaction. Effect of drying and preheating temperature on preventing other phases was studied. Many…
Chemical heterogeneity and approaches to its control in BiFeO3–BaTiO3 lead-free ferroelectrics
1 mol% MnO2 was used to improve electrical resistivity of lead-free 0.75BiFeO3–0.25BaTiO3 (75BFBT) ferroelectric ceramics; the materials were perovskite structured with major rhombohedral (R3c)…
Effect of Nd and Nb co-doping on the structural, magnetic and optical properties of multiferroic BiFeO3 nanoparticles prepared by sol-gel method
Ferromagnetic and dielectric properties of lead free KNbO3-CoFe2O4 composites
Structure and multiferroic properties of ternary (1−x)(0.8BiFeO3-0.2BaTiO3)-xK0.5Na0.5NbO3 (0 ≤ x ≤ 0.5) solid solutions

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