Hypersonic frequency and damping anomalies in relaxor ferroelectric Pb(Zn1/3Nb2/3)O3
Hypersonic frequency and damping anomalies in relaxor ferroelectric Pb(Zn1/3Nb2/3)O3
复制标题
弛豫铁电 Pb(Zn1/3Nb2/3)O3 的高超声速频率和阻尼异常
DOI：
10.1063/1.1356733
复制
发表时间：
2001
影响因子：
4
通讯作者：
Y. Ishibashi
中科院分区：
文献类型：
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作者：
M. H. Kuok;S. Ng;H. Fan;M. Iwata;Y. Ishibashi
测量了弛豫铁电体Pb（Zn_（1/3）Nb_（2/3））O_3在296 - 780 K之间的布里渊散射。原始Pb（Zn 1/3 Nb 2/3）O3晶体的加热产生的结果不同于随后的加热或冷却过程。一个不寻常的广泛软化的纵向声学模式的频率，由于扩散铁电相变，观察。伴随的声子阻尼归因于序参数波动。一个巨大的温度滞后，这逃避了其他技术的观察，已被发现。
Brillouin scattering from relaxor ferroelectric Pb(Zn1/3Nb2/3)O3 has been measured between 296 and 780 K. Heating of the virgin Pb(Zn1/3Nb2/3)O3 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.
DOI：
10.1143/jjap.21.1298
发表时间：
1982-01-01
期刊：
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS
影响因子：
--
作者：
KUWATA, J;UCHINO, K;NOMURA, S
通讯作者：
NOMURA, S