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Brillouin and dielectric studies of the phase transition in the relaxor ferroelectric Pb(Ni1/3Nb2/3)O3
| 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 | | Phonons | | 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 |
| URI: | http://hdl.handle.net/2115/50773 |
| 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)
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Submitter: 折原 宏
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