- Title
- Search for the X-phase in poled PZN-PT using very high-resolution single-crystal neutron diffraction
- Creator
- Kisi, E. H.; Forrester, J. S.; Howard, C. J.; Ibberson, R. M.
- Relation
- Journal of Physics - Condensed Matter Vol. 19, Issue 23
- Publisher Link
- http://dx.doi.org/10.1088/0953-8984/19/23/232201
- Publisher
- Institute of Physics (IOP) Publishing
- Resource Type
- journal article
- Date
- 2007
- 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.
- Subject
- X-phase; PZN–PT; single-crystal neutron diffraction; relaxor ferroelectric crystals; electric poling
- Identifier
- http://hdl.handle.net/1959.13/33994
- Identifier
- uon:3451
- Identifier
- ISSN:0953-8984
- Language
- eng
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