title: Polarized Raman study on phase transitions in 0.24Pb(In1/2Nb1/2)O3-0.43Pb(Mg1/3Nb2/3)O3-0.33PbTiO3single crystal.
abstract: Polarized Raman spectroscopy was performed to investigate the local lattice structure and phase transitions of unpoled 0.24Pb(In1/2Nb1/2)O3-0.43Pb(Mg1/3Nb2/3)O3-0.33PbTiO3(0.24PIN-0.43PMN-0.33PT) single crystal in the temperature range from 30 °C to 260 °C. MA- and MC-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 theVVandVHgeometries were investigated. Our results indicated that the monoclinic-tetragonal (M-T) phase transition of the ternary relaxorbased ferroelectric single crystal 0.24PIN-0.43PMN-0.33PT occurs at 85 °C, which is verified by the mode merging from 520 cm-1and 580 cm-1to 500 cm-1, and the tetragonal-cubic (T-C) phase transition happens at 200 °C based on the vanishing mode at 780 cm-1measured in theVHpolarization.
authors.affiliation: Condensed Matter Science and Technology Institute, Harbin Institute of Technology, Harbin 150080, China ; College of Applied Science, Harbin University of Science and Technology, Harbin 150080, China.
authors.forename: Fengmin
authors.initials: F
authors.lastname: Wu
authors.affiliation: Condensed Matter Science and Technology Institute, Harbin Institute of Technology, Harbin 150080, China.
authors.forename: Bin
authors.initials: B
authors.lastname: Yang
authors.affiliation: Condensed Matter Science and Technology Institute, Harbin Institute of Technology, Harbin 150080, China.
authors.forename: Enwei
authors.initials: E
authors.lastname: Sun
authors.affiliation: Condensed Matter Science and Technology Institute, Harbin Institute of Technology, Harbin 150080, China.
authors.forename: Rui
authors.initials: R
authors.lastname: Zhang
authors.affiliation: School of Physics, Jilin University, Changchun 130023, China.
authors.forename: Dapeng
authors.initials: D
authors.lastname: Xu
authors.affiliation: School of Physics, Jilin University, Changchun 130023, China.
authors.forename: Jing
authors.initials: J
authors.lastname: Zhou
authors.affiliation: Condensed Matter Science and Technology Institute, Harbin Institute of Technology, Harbin 150080, China ; Materials Research Institute, The Pennsylvania State University, University Park, PA 16802, USA.
authors.forename: Wenwu
authors.initials: W
authors.lastname: Cao
keywords: Micro-Raman; PIN–PMN–PT; Phase transitions