Hypersonic frequency and damping anomalies in relaxor ferroelectric Pb(Zn1/3Nb2/3)O3

被引：23

作者：

Kuok, MH ^{[1
]}

Ng, SC

Fan, HJ

Iwata, M

Ishibashi, Y

机构：

[1] Natl Univ Singapore, Dept Phys, Singapore 119260, Singapore

[2] Nagoya Univ, Grad Sch Engn, Dept Appl Phys, Nagoya, Aichi 4648603, Japan

[3] Aichi Shukutoku Univ, Fac Commun, Nagakute, Aichi 4801197, Japan

来源：

APPLIED PHYSICS LETTERS | 2001年 / 78卷 / 12期

关键词：

D O I：

10.1063/1.1356733

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Brillouin scattering from relaxor ferroelectric Pb(Zn1/3Nb2/3)O-3 has been measured between 296 and 780 K. Heating of the virgin Pb(Zn1/3Nb2/3)O-3 crystal produced results that are different from those of subsequent heating or cooling processes. An unusually broad softening of the longitudinal acoustic-mode frequency, due to the diffuse ferroelectric-phase transition, is observed. The attendant phonon damping is attributed to order-parameter fluctuations. A huge temperature hysteresis, which eluded observation by other techniques, has been found. (C) 2001 American Institute of Physics.

引用

页码：1727 / 1729

页数：3

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