LIGHT-SCATTERING STUDY OF THE COUPLED SOFT-OPTIC AND ACOUSTIC MODE IN HEXAGONAL BARIUM-TITANATE

被引：24

作者：

YAMAGUCHI, M ^{[1
]}

WATANABE, M ^{[1
]}

INOUE, K ^{[1
]}

AKISHIGE, Y ^{[1
]}

YAGI, T ^{[1
]}

机构：

[1] SHIMANE UNIV,FAC EDUC,MATSUE,SHIMANE 690,JAPAN

来源：

PHYSICAL REVIEW LETTERS | 1995年 / 75卷 / 07期

关键词：

D O I：

10.1103/PhysRevLett.75.1399

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Low-frequency light scattering spectra of hexagonal barium titanate have been observed in the temperature region from 40 to 300 K. An intense central peak was observed near the phase transition temperature T-0 = 222 K and was assigned to be caused by the coupled soft-optic and acoustic mode. The coupled-mode model has been employed to fit experimental data and gives good agreement with the observed spectra. The omega(0)(2)/Gamma(0) ratio of soft-optic-mode frequency omega(0) and damping constant Gamma(0) and the bilinear coupling constant A exhibit linear dependence on T - T-0 indicating mean-field behavior.

引用

页码：1399 / 1402

页数：4

共 50 条

[21] COMBINATION SCATTERING OF LIGHT BY POLARITONS COUPLED TO A SOFT MODE OF A LITHIUM TANTALATE CRYSTAL
POLIVANOV, YN
POLUEKTOV, SN
ZHURNAL EKSPERIMENTALNOI I TEORETICHESKOI FIZIKI, 1982, 83 (04): : 1592 - 1600
[22] PHOTO-ACOUSTIC STUDY OF DIFFUSE LIGHT-SCATTERING FROM A DIFFRACTION GRATING
INAGAKI, T
MOTOSUGA, M
YAMAMORI, K
ARAKAWA, ET
APPLIED OPTICS, 1983, 22 (19) : 3009 - 3012
[23] LIGHT-SCATTERING STUDY OF THE LOCALIZATION OF LONGITUDINAL ACOUSTIC PSEUDOMODES IN A BURIED SILICA LAYER
GHISLOTTI, G
BOTTANI, CE
MUTTI, P
BYLOOS, C
GIOVANNINI, L
NIZZOLI, F
PHYSICAL REVIEW B, 1995, 51 (15): : 9875 - 9880
[24] STUDY OF DISPERSION-RELATIONS OF COUPLED PHONON-DAMPED PLASMON MODE IN N-GAAS BY LIGHT-SCATTERING
MURASE, K
KATAYAMA, S
KAWAMURA, H
ANDO, Y
SUPPLEMENT OF THE PROGRESS OF THEORETICAL PHYSICS, 1975, (57): : 115 - 124
[25] STUDY OF THE STRUCTURE OF POLYORGANOSILOXANE-BUTYL-ORTHO-TITANATE MIXTURES BY LIGHT-SCATTERING AND VISCOMETRY METHODS
KORIDZE, NV
ANDREEVA, VM
TAGER, AA
SUVOROV, AL
KHRUSTALEVA, YA
FRIDMAN, LI
VYSOKOMOLEKULYARNYE SOEDINENIYA SERIYA A, 1985, 27 (02): : 283 - 288
[26] Light scattering by acoustic phonons coupled to a two-dimensional collective anyon mode
Fil, DV
Zazunov, AL
FIZIKA NIZKIKH TEMPERATUR, 1996, 22 (12): : 1442 - 1446
[27] LIGHT-SCATTERING STUDY OF THE NON-ZERO WAVE VECTOR INCOMMENSURATE SOFT MODE IN K2SEO4
MASSA, NE
ULLMAN, FG
HARDY, JR
SOLID STATE COMMUNICATIONS, 1979, 32 (11) : 1005 - 1008
[28] Ferroelectric barium titanate microspheres with superior light-scattering ability for the performance enhancements of flexible polymer dye sensitized solar cells and photodetectors
Baiju, K. Gireesh
Murali, B.
Kumaresan, Duraisamy
SOLAR ENERGY, 2021, 224 : 93 - 101
[29] Raman scattering study of the soft phonon mode in the hexagonal ferroelectric crystal KNiCl3
Machida, K
Kato, T
Chao, PS
Iio, K
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1997, 66 (10) : 3283 - 3288
[30] Raman Scattering Study of the Soft Phonon Mode in the Hexagonal Ferroelectric Crystal KNiCl3
J Phys Soc Jpn, 10 (3283):

← 1 2 3 4 5 →