Ground state of the relaxor ferroelectric Pb(Zn1/3Nb2/3)O3

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DOIResolve DOI: http://doi.org/10.1103/PhysRevB.67.104102
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TypeArticle
Journal titlePhysical Review B
ISSN1098-0121
1550-235X
Volume67
Issue10
Article number104102
AbstractHigh energy x-ray diffraction measurements on Pb(Zn 1/3 Nb 2/3 )O 3 (PZN) single crystals show that the system does not have a rhombohedral symmetry at room temperature as previously believed. The phase (X) in the bulk of the crystal gives Bragg peaks similar to that of a nearly cubic lattice with a slight tetragonal distortion. The Bragg profile remains sharp with no evidence of size broadening due to the polar microcrystals. However, in our preliminary studies of the skin, we have found the expected rhombohedral (R) phase as a surface state. On the other hand, studies on an electric-field poled PZN single crystal clearly indicate a rhombohedral phase at room temperature.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada
Peer reviewedYes
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NPARC number21277287
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Record identifier02fcdb68-3dec-4482-8012-cf8f73247ca3
Record created2016-02-04
Record modified2016-05-09
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