Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.13/33994

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Title
Search for the X-phase in poled PZN-PT using very high-resolution single-crystal neutron diffraction
Author/Creator
Kisi, E. H.;  Forrester, J. S.;  Howard, C. J.;  Ibberson, R. M.
Institution
The University of Newcastle. Faculty of Engineering and Built Environment, School of Engineering
Description
Reports that in PbZn⅓Nb⅔O3–x%PbTiO3 (PZN–PT) relaxor ferroelectric crystals an 'X-phase' exists, which has a cubic interior and a 10–50 μm thick rhombohedrally distorted surface, have been re-examined to resolve the effect of electric poling. The crystal structure of electrically poled and de-poled PZN–4.5%PT single crystals has been studied using a novel rotating single-crystal method on the high-resolution neutron powder diffractometer at the ISIS Facility. The recorded patterns are neutron time-of-flight analogues to the zero layer lines of rotating single-crystal x-ray diffraction patterns. Both [001] and [110] zones were examined and they demonstrate unequivocally that the crystals do not have a cubic core. There appears now to be direct evidence against the occurrence of the 'X-phase' in every circumstance in which, based on synchrotron studies, it was previously proposed to exist.
Relation
Journal of Physics - Condensed Matter Vol. 19, Issue 23
Publisher Link
http://dx.doi.org/10.1088/0953-8984/19/23/232201
Date
2007
Publisher
Institute of Physics (IOP) Publishing
Keyword(s)
X-phase;  PZN–PT;  single-crystal neutron diffraction;  relaxor ferroelectric crystals;  electric poling
Resource Type
journal article
Identifier
http://hdl.handle.net/1959.13/33994
Identifier
ISSN:0953-8984
Reviewed
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Subject
"Journal of Physics - Condensed Matter"
 
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