Ordered structure in lead magnoniobate (PMN) by resonant X-ray scattering

V. Gosula*, H. D. Chen

*Corresponding author for this work

Research output: Contribution to conferencePaperpeer-review

Abstract

Half integer superlattice reflections characteristic of ordered structure in PMN (Pb(Mg1/3Nb2/3)O3) single crystal have been measured using resonant synchrotron x-ray scattering near the Pb LIII absorption edge. These superlattice peaks have been previously reported in PMN by electron diffraction, and were interpreted in the context of a two phase Nb/Mg ordering model to explain its relaxor ferroelectric behavior. Nevertheless, the microscopic origin of the superlattice peaks is controversial. Previous results have shown that the Nb atom contributes heavily to the superlattice peaks. However, the effective scattering factor for these peaks is significantly smaller than in the case of complete ordering. In addition, there is strong evidence that lead participates in the ordering.

Original languageEnglish
Pages175-180
Number of pages6
DOIs
StatePublished - 1 Dec 1996
EventProceedings of the 1996 MRS Spring Meeting - San Francisco, CA, USA
Duration: 8 Apr 199612 Apr 1996

Conference

ConferenceProceedings of the 1996 MRS Spring Meeting
CitySan Francisco, CA, USA
Period8/04/9612/04/96

Fingerprint Dive into the research topics of 'Ordered structure in lead magnoniobate (PMN) by resonant X-ray scattering'. Together they form a unique fingerprint.

Cite this