Dynamics of Central Peaks in the Brillouin Scattering Spectra of Relaxor Ferroelectrics-Reference-Cited by-同舟云学术

Dynamics of Central Peaks in the Brillouin Scattering Spectra of Relaxor Ferroelectrics

Published:2009-12 Issue: Volume:421-422 Page:403-406
ISSN:1662-9795
Container-title:Key Engineering Materials
language:
Short-container-title:KEM

Author:

Shabbir Ghulam¹,Kojima Seiji²

Affiliation:

1. PINSTECH

2. Photonics Research & Development Center

Abstract

High-resolution Brillouin scattering technique was applied to study the dynamics of central peaks (CPs) in two relaxor ferroelectric systems, PLZT-x/65/35 ceramics and PMN-33%PT [001] single crystals, respectively. It was found that CPs appear very close to an intermediate temperature, Td, for both type of specimens. The temperature dependence of CPs was attributed to the appearance and subsequent growth of polar nanoregions (PNRs) intrinsic to relaxor materials.

Publisher

Trans Tech Publications, Ltd.

Subject

Mechanical Engineering,Mechanics of Materials,General Materials Science

Link

https://www.scientific.net/KEM.421-422.403.pdf

Reference20 articles.

1. single crystals. SUMMARY In summary central peaks in PLZT-x/65/35 ceramics and PMN-33%PT.

2. oriented single crystal were studied by the high-resolution Brillouin scattering technique. In PMN-33%PT, the dynamical behavior of CPs was attributed to the presence of PNRs and domain wall movement/alignment. Whereas in PLZT ceramics, CPs resulted from growth and subsequent thermal profile of PNRs. The new intermediate temperature, Td, may be associated to the phenomenon of CPs in relaxor materials. REFERE#CES.

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