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Brillouin and dielectric studies of the phase transition in the relaxor ferroelectric Pb(Ni1/3Nb2/3)O3

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Title: Brillouin and dielectric studies of the phase transition in the relaxor ferroelectric Pb(Ni1/3Nb2/3)O3
Authors: Fan, H. J. Browse this author
Kuok, M. H. Browse this author
Ng, S. C. Browse this author
Yasuda, N. Browse this author
Ohwa, H. Browse this author
Iwata, M. Browse this author
Orihara, H. Browse this author →KAKEN DB
Ishibashi, Y. Browse this author
Keywords: Lead compounds
Ferroelectric transitions
Brillouin spectra
Ferroelectric Curie temperature
Dielectric relaxation
Issue Date: Feb-2002
Publisher: AIP
Journal Title: Journal of Applied Physics
Volume: 91
Issue: 4
Start Page: 2262
End Page: 2266
Publisher DOI: 10.1063/1.1433183
Abstract: Brillouin scattering has been performed on the relaxor ferroelectric Pb(Ni1/3Nb2/3)O3 (PNN) from 80 to 450 K across its Curie temperature. A diffuse phase transition from the paraelectric to ferroelectric phase, associated with a broad phonon frequency dip and a damping maximum, is observed around 200 K. A relaxation mode in the form of a broad Rayleigh wing, whose frequency is strongly temperature dependent above 190 K, is observed and analyzed based on a modified superparaelectric model. Dielectric studies of PNN have also been carried out at several measurement frequencies. The relation between the measurement frequency and the dielectric maximum temperature was analyzed on a modified Vogel–Fulcher model.
Rights: Copyright 2002 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.
Type: article
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 折原 宏

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