Published June 2009
| Version v1
Journal article
The structural origin of the antiferroelectric properties and relaxor behavior of Na0.5Bi0.5TiO3
Creators
- 1. Laboratoire de Cristallographie et Sciences des Materiaux, CRISMAT-CNRS UMR 6508, 6 Bd. du Marechal Juin, F-14050, Caen Cedex (France)
- 2. Laboratoire Sciences des Procedes Ceramiques et des Traitements de Surface, SPCTS-CNRS-UMR-6638, 123 Av. Albert Thomas, F-87060, Limoges Cedex (France)
Description
This work presents a study of Na0.5Bi0.5TiO3 (NBT) by transmission electron microscopy in the 20-370 oC temperature range. A new orthorhombic intermediate phase between the rhombohedral and the tetragonal phases is proposed to account for the occurrence of 1/2 (oee) superstructure spots. The phase transition from the rhombohedral to the orthorhombic phase occurs via a modulated phase formed by rhombohedral blocks and orthorhombic sheets. It is shown that these latter represent rhombohedral (0 1 0) twin planes. The modulated phase is proposed to explain the antiferroelectric and relaxor behaviors of NBT.
Availability note (English)
Available from http://dx.doi.org/10.1016/j.jmmm.2009.02.013Additional details
Identifiers
- DOI
- 10.1016/j.jmmm.2009.02.013;
- PII
- S0304-8853(09)00058-4;
Publishing Information
- Journal Title
- Journal of Magnetism and Magnetic Materials
- Journal Volume
- 321
- Journal Issue
- 11
- Journal Page Range
- p. 1758-1761
- ISSN
- 0304-8853
- CODEN
- JMMMDC
Conference
- Title
- Symposium F - Multiferroics and magnetoelectrics materials
- Acronym
- E-MRS conference
- Dates
- 26-30 May 2008
- Place
- Strasbourg (France)
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 41009728
- Subject category
- S36: MATERIALS SCIENCE;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- BISMUTH COMPOUNDS; FERROELECTRIC MATERIALS; ORTHORHOMBIC LATTICES; PHASE TRANSFORMATIONS; SODIUM COMPOUNDS; TEMPERATURE RANGE 0273-0400 K; TEMPERATURE RANGE 0400-1000 K; TITANATES; TRANSMISSION ELECTRON MICROSCOPY
- Descriptors DEC
- ALKALI METAL COMPOUNDS; CRYSTAL LATTICES; CRYSTAL STRUCTURE; DIELECTRIC MATERIALS; ELECTRON MICROSCOPY; MATERIALS; MICROSCOPY; OXYGEN COMPOUNDS; TEMPERATURE RANGE; TITANIUM COMPOUNDS; TRANSITION ELEMENT COMPOUNDS
Optional Information
- Copyright
- Copyright (c) 2009 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.