Coexistence of monoclinic and tetragonal phases in PMN-PT single crystal

The purpose of the present work is to report studies on structural phase transition for PMN-xPT single crystal, with melt PbTiO3 composition around the MPB (x = 0.35 mol %), using infrared spectroscopy technique. The study was centered on monitoring the behavior of the stretching-(Nb-O), stretching-...

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Bibliographic Details
Published inarXiv.org
Main Authors Araujo, E B, Guarany, C A, Yukimitu, K, Moraes, J C S, Hernandes, A C
Format Paper
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 29.07.2004
Subjects
Composition
Crystal structure
Lead titanates
Phase transitions
Single crystals
Singularities
Stretching
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Summary:The purpose of the present work is to report studies on structural phase transition for PMN-xPT single crystal, with melt PbTiO3 composition around the MPB (x = 0.35 mol %), using infrared spectroscopy technique. The study was centered on monitoring the behavior of the stretching-(Nb-O), stretching-(Ti-O) and stretching-(Mg-O) stretching modes as a function of temperature. Singularities observed between 198 and 300 K suggested a possible coexistence between the monoclinic and tetragonal phases, not revealed by others techniques, for PMN-PT composition studied near MPB.
ISSN:2331-8422