Anomalous polarization in the antiferroelectric-ferroelectric phase coexistence state in PbZrO3-Bi(Mg1/2Ti1/2)O3
- 1. Department of Materials Engineering, Indian Institute of Science Bangalore 560012 (India)
Description
The ferroelectric system (1−x)PbZrO3-(x)Bi(Mg1/2Ti1/2)O3 has been investigated as a function of composition, temperature, and electric field by x-ray powder diffraction, dielectric, and ferroelectric measurements. Within the solubility limit (x ∼ 0.25), the system evolves from an orthorhombic-antiferroelectric to rhombohedral-ferroelectric state through a phase coexistence region. The highest polarization was found not for the composition exhibiting a pure ferroelectric state, but for a composition x = 0.15 exhibiting ferroelectric + antiferroelectric phase coexistence close to the rhombohedral phase boundary. Electric poling of the equilibrium two-phase state led to irreversible enhancement in the rhombohedral phase fraction suggesting that the enhanced polarization is related to the enhanced polarizability of the lattice due to first order criticality as in ferroelectric-ferroelectric morphotropic phase boundary systems
Additional details
Identifiers
- DOI
- 10.1063/1.4847475;
Publishing Information
- Journal Title
- Journal of Applied Physics
- Journal Volume
- 114
- Journal Issue
- 23
- Journal Page Range
- p. 234105-234105.6
- ISSN
- 0021-8979
- CODEN
- JAPIAU
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 45087340
- Subject category
- S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS;
- Descriptors DEI
- CRITICALITY; ELECTRIC FIELDS; FERROELECTRIC MATERIALS; ORTHORHOMBIC LATTICES; OZONE; POLARIZABILITY; POLARIZATION; TRIGONAL LATTICES; X-RAY DIFFRACTION
- Descriptors DEC
- COHERENT SCATTERING; CRYSTAL LATTICES; CRYSTAL STRUCTURE; DIELECTRIC MATERIALS; DIFFRACTION; ELECTRICAL PROPERTIES; MATERIALS; PHYSICAL PROPERTIES; SCATTERING
Optional Information
- Notes
- (c) 2013 AIP Publishing LLC