Dynamical properties of the relaxor ferroelectric 0.71Pb(Ni1/3Nb2/3)O3-0.29PbTiO3 probed by Brillouin and Raman scattering

Author

Tsukada, S. ; Ike, Yuji ; Kano, Jun ; Sekiya, Tadashi ; Shimojo, Yoshihito ; Wang, Ruiping ; Kojima, S.

Author_Institution

Tsukuba Univ., Tsukuba

fYear

2007

fDate

27-31 May 2007

Firstpage

285

Lastpage

288

Abstract

Structural phase transitions in relaxor ferroelectric materials remain to be one of the most puzzling issues in solid-state physics. In the present work, we have investigated relaxational and vibrational properties of a relaxor ferroelectric 0.71Pb(Ni_1/3Nb_2/3)O₃-0.29PbTiO₃ single crystal by means of inelastic light scattering measurements. Analysis based on the spectra has showed anomalous behaviors at Burn´s temperature T_d, freezing temperature T_f, those are related to a development of polar nanoregions (PNRs). PNR must play a key role in relaxor nature, and obtained results provide insight into the relaxational processes in the PNR and into how they develop below T_f.

Keywords

Brillouin spectra; Raman spectra; crystal structure; dielectric relaxation; ferroelectric transitions; lead compounds; relaxor ferroelectrics; vibrational modes; Brillouin scattering; PbNi_0.33Nb_0.67O₃-PbTiO₃; Raman scattering; inelastic light scattering measurements; polar nanoregions; relaxational property; relaxor ferroelectric materials; structural phase transitions; vibrational property; Acoustic scattering; Brillouin scattering; Light scattering; Optical scattering; Raman scattering; Rayleigh scattering; Relaxor ferroelectrics; Spectroscopy; Temperature; X-ray scattering;

fLanguage

English

Publisher

ieee

Conference_Titel

Applications of Ferroelectrics, 2007. ISAF 2007. Sixteenth IEEE International Symposium on

Conference_Location

Nara

ISSN

1099-4734

Print_ISBN

978-1-4244-1334-8

Electronic_ISBN

1099-4734

Type

conf

DOI

10.1109/ISAF.2007.4393242

Filename

4393242