Central Peak in Pb(Zn1/3Nb2/3)O3/9% PbTiO3 Relaxor Studied by 90° Brillouin Scattering

Authors: Gorouya, Yoshihiro1; Tsujimi, Yuhji1; Yamashita, Yohachi2; Ifukube, Tohru1; Yagi, Toshirou1

Source: Ferroelectrics, Volume 266, Number 1, 2002 , pp. 165-169(5)

Publisher: Taylor and Francis Ltd

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The 90° Brillouin scattering experiment of the relaxor material Pb(Zn1/3Nb2/3)O3/9%PbTiO3 has been performed in the VV and VH scattering geometries. The central peak spectrum caused by the polar micro-cluster (PMC) is successfully detected. Especially, the central peak appears clearly in VH scattering spectra but does not in VV scattering spectra in the tetragonal phase. The physical origin of the central peak is discussed in terms of the polarization fluctuation of PMC.

Keywords: Brillouin scattering; Pb(Zn1/3Nb2/3)O3/9%PbTiO3; central peak; ferroelectrics; morphotropic phase boundary; phase transition; relaxor

Document Type: Research Article

DOI: http://dx.doi.org/10.1080/714939477

Affiliations: 1: Research Institute for Electronic Science, Hokkaido University, Sapporo 060-0812, Japan 2: Research and Development Center, Toshiba Corporation, Kawasaki 212-8582, Japan

Publication date: January 1, 2002

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