Polarized Raman study on phase transitions in 0.24Pb(In 1/2Nb1/2)O3-0.43Pb(Mg1/3Nb 2/3)O3-0.33PbTiO3 single crystal

Fengmin Wu, Bin Yang, Enwei Sun, Rui Zhang, Dapeng Xu, Jing Zhou, Wenwu Cao

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Abstract

Polarized Raman spectroscopy was performed to investigate the local lattice structure and phase transitions of unpoled 0.24Pb(In1/2Nb 1/2)O3-0.43Pb(Mg1/3Nb2/3)O 3-0.33PbTiO3 (0.24PIN-0.43PMN-0.33PT) single crystal in the temperature range from 30 °C to 260 °C. MA- and M C-type monoclinic phases were detected by micro-Raman spectra measured in different micro areas. Temperature dependence of Raman intensities, frequency shifts, mode merge and intensity ratios in the VV and VH geometries were investigated. Our results indicated that the monoclinic-tetragonal (M-T) phase transition of the ternary relaxor-based ferroelectric single crystal 0.24PIN-0.43PMN-0.33PT occurs at 85 °C, which is verified by the mode merging from 520 cm-1 and 580 cm-1 to 500 cm-1, and the tetragonal-cubic (T-C) phase transition happens at 200 °C based on the vanishing mode at 780 cm-1 measured in the VH polarization.

Original languageEnglish (US)
Pages (from-to)98-100
Number of pages3
JournalJournal of Alloys and Compounds
Volume551
DOIs
StatePublished - Feb 25 2013

All Science Journal Classification (ASJC) codes

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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