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

E. B. Araujo·C. A. Guarany·K. Yukimitu·J. C. S. Moraes·A. C. Hernandes
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Abstract

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.

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E. B. Araujo, C. A. Guarany, K. Yukimitu, J. C. S. Moraes, A. C. Hernandes. 2004-07-29. Coexistence of monoclinic and tetragonal phases in PMN-PT single crystal. https://arxiv.org/abs/cond-mat/0407760

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