Local stabilisation of polar order at charged antiphase boundaries in antiferroelectric (Bi0.85Nd0.15)(Ti0.1Fe0.9)O3

MacLaren, I. et al. (2013) Local stabilisation of polar order at charged antiphase boundaries in antiferroelectric (Bi0.85Nd0.15)(Ti0.1Fe0.9)O3. APL Materials, 1(2), 021102. (doi:10.1063/1.4818002)

[img]
Preview
Text
84966.pdf - Published Version
Available under License Creative Commons Attribution.

1MB

Publisher's URL: http://dx.doi.org/10.1063/1.4818002

Abstract

Observation of an unusual, negatively-charged antiphase boundary in (Bi0.85Nd0.15)(Ti0.1Fe0.9)O3 is reported. Aberration corrected scanning transmission electron microscopy is used to establish the full three dimensional structure of this boundary including O-ion positions to ~ ± 10 pm. The charged antiphase boundary stabilises tetragonally distorted regions with a strong polar ordering to either side of the boundary, with a characteristic length scale determined by the excess charge trapped at the boundary. Far away from the boundary the crystal relaxes into the well-known Nd-stabilised antiferroelectric phase.

Item Type:Articles (Letter)
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Schaffer, Dr Bernhard and MacLaren, Dr Ian and Wang, Ms Liqiu and Craven, Professor Alan and Morris, Mr Owen and Stamps, Professor Robert
Authors: MacLaren, I., Wang, L., Morris, O., Craven, A., Stamps, R., Schaffer, B., Ramasse, Q., Miao, S., Kalantari, K., Sterianou, I., and Reaney, I.
College/School:College of Science and Engineering > School of Physics and Astronomy > Kelvin Nanocharacterisation Centre
Research Group:Materials and Condensed Matter Physics
Journal Name:APL Materials
Journal Abbr.:APL Mater
Publisher:American Institute of Physics
ISSN:2166-532X
Related URLs:

University Staff: Request a correction | Enlighten Editors: Update this record