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

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

Materials Science 2007-05-23 v1

Authors: E. B. Araujo , C. A. Guarany , K. Yukimitu , J. C. S. Moraes , A. C. Hernandes

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.

Keywords

PMN-PT structural phase transition monoclinic phase tetragonal phase infrared spectroscopy morphotropic phase boundary

Cite

@article{arxiv.cond-mat/0407760,
  title  = {Coexistence of monoclinic and tetragonal phases in PMN-PT single crystal},
  author = {E. B. Araujo and C. A. Guarany and K. Yukimitu and J. C. S. Moraes and A. C. Hernandes},
  journal= {arXiv preprint arXiv:cond-mat/0407760},
  year   = {2007}
}

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19 pages, 5 figures, submitted to Physical Review B

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

Abstract

Keywords

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