Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/18555
Title: Study of domain morphology in Pb(Fe1/2,Nb1/2)O 3 and (0.94)Pb(Fe1/2Nb1/2)O3:(0.06) PbTiO3 by transmission electron microscopy
Authors: Meng, X
Baba-Kishi, KZ
Chan, HL 
Choy, CL 
Luo, HS
Keywords: Domains
Transmission electron microscopy (TEM)
Issue Date: 2004
Publisher: Taylor & Francis Inc.
Source: Ferroelectrics, 2004, v. 303, p. 69-73 How to cite?
Journal: Ferroelectrics 
Abstract: Various domain patterns in the [001] orientated Pb(Fe1/2Nb1/2)O3(0.94) Pb(Fe1/2Nb1/2)O3:(0.06)PbTiO3 single crystals were observed using transmission electron microscopy (TEM). At room temperature, the observed domains morphology included mesoscopic crosshatched tweed domains, single tweeds, and mesoscopic needle-shaped domains close to [001], oriented along [100] or [010]. The contrast originating from the needles is strain-related with the corresponding displacements being perpendicular to the needle axis. -type boundaries were observed at the intersection between the [010] and [100] needles. Upon change of temperature in-situ in the TEM, the single tweeds and their associated needles became unstable. Transformation between the needles and single tweeds occurred when the temperature was decreased to below -30°C or increased to above 50°C. Above 150°C, a new type of macro-domain that dominated the entire crystal was formed, subsequently disappearing at 200°C. The various observed domains were associated with either elastic strain or structural transformation but the existence of possible magnetic domains could not be verified.
URI: http://hdl.handle.net/10397/18555
ISSN: 0015-0193
EISSN: 1563-5112
DOI: 10.1080/00150190490456600
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