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Marco Deluca, Hideo Fukumura, Nobuhiko Tonari, Claudio Capiani, Noriyuki Hasuike, Kenji Kisoda, Carmen Galassi and Hiroshi Harima Raman spectroscopic study of phase transitions in undoped morphotropic PbZr1−xTixO3 Journal of Raman Spectroscopy 42

Article first published online: 20 JUN 2010 | DOI: 10.1002/jrs.2714

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Low-T and high-T Raman scattering spectra were collected on undoped PbZr1−xTixO3 with compositions x = 0.42, 0.45, 0.465, 0.48 and 0.53 in an attempt to contribute clarify the current open issues on the phase diagram of PZT. Spectra clearly belonging to the respective phases were observed in the rhombohedral, monoclinic and tetragonal areas, thus confirming that monoclinic ordering is long-range only for a narrow span of compositions. Raman measurements at cryogenic temperatures allowed detecting all predicted low-T phases, including the tetragonal one.

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