Raman scattering study of the PbZr1-xTixO3 system: Rhombohedral-monoclinic-tetragonal phase transitions

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Data

2002-10-01

Autores

Souza Filho, A. G.
Lima, K. C. V.
Ayala, A. P.
Guedes, I.
Freire, P. T. C.
Melo, F. E. A.
Mendes Filho, J.
Araújo, E. B. [UNESP]
Eiras, J. A.

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Resumo

In this paper we present a Raman-scattering study of the phase transitions in the PbZr1-xTixO3 systems around the morphotropic phase boundary over a wide temperature range. The boundary between rhombohedral and monoclinic phases was found to be a quasivertical line between x = 0.46 and x = 0.47. We also studied the monoclinic-tetragonal phase boundary and our spectroscopic results agree very well with those reported by using x-ray diffraction.

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lead, oxygen, titanium, zirconium, geometry, phase transition, radiation scattering, Raman spectrometry, temperature, X ray diffraction

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Physical Review B - Condensed Matter and Materials Physics, v. 66, n. 13, p. 1321071-1321074, 2002.