Hysteresis in acoustic properties of ferroelectric relaxor Pb[(Zn1/3Nb2/3)0.955Ti0.045]O3 single crystals studied by Brillouin and dielectric spectroscopies
Hysteresis in acoustic properties of ferroelectric relaxor Pb[(Zn1/3Nb2/3)0.955Ti0.045]O3 single crystals studied by Brillouin and dielectric spectroscopies
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布里渊和介电谱研究铁电弛豫剂Pb[(Zn1/3Nb2/3)0.955Ti0.045]O3单晶声学特性的滞后
DOI：
10.1063/1.2338829
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发表时间：
2006
影响因子：
3.2
通讯作者：
Z. Ye
中科院分区：
文献类型：
--
作者：
J. Ko;Do Han Kim;S. Kojima;Wenzhi Chen;Z. Ye
利用高分辨微布里渊散射和介电谱研究了Pb[（Zn 1 scin 3 Nb 2 scin 3）1−xTix]O3（PZN-xPT）（x=0.045）单晶在宽温度范围内的声学和介电性质.布里渊频移的软化和介电弛豫时间的增加表明冷却后极性纳米区（PNR）的形成和它们的动力学减慢。与典型模型弛豫体如铌酸铅的声学性质相反，布里渊位移在其最小值附近的变化在加热时比在冷却时的变化更尖锐，这表明PZN-4.5%PT中扩散相变的动力学中明显存在滞后。由于PNR的数量将在冷却时增加，可以预期相变的动力学将变得更慢，转变温度越低，导致在冷却期间观察到的布里渊频移的更缓慢、更宽的特征。这一结果可能表明…
Acoustic and dielectric properties of Pb[(Zn1∕3Nb2∕3)1−xTix]O3 (PZN‐xPT) single crystals with x=0.045 have been studied by the high-resolution micro-Brillouin scattering and dielectric spectroscopy in a wide temperature range. The softening of the Brillouin shift and the increase of dielectric relaxation time upon cooling indicated the formation of polar nanoregions (PNRs) and the slowing down of their dynamics. In contrast to the acoustic properties of typical model relaxors such as lead magnesioniobate, the change in the Brillouin shift near its minimum became sharper on heating compared to the change on cooling, pointing to the clear existence of hysteresis in the dynamics of the diffuse phase transition in PZN-4.5%PT. Since the number of PNRs will increase upon cooling, it may be expected that the kinetics of the phase transition would become slower, the lower the transition temperature resulting in the more sluggish, broad feature of the Brillouin shift observed during cooling. This result may indica...
影响因子：
3.2
作者：
Park, SE;Shrout, TR
通讯作者：
Shrout, TR
驰豫铁电体Pb(Zn_<1/3>Nb_<2/3>)O_3的布里渊散射研究
DOI：
--
发表时间：
2003
期刊：
Appl.Phys.Lett. 83
影响因子：
--
作者：
Yasuki Sakurai;Fumio Koyama;Y.Gorouya
通讯作者：
Y.Gorouya
(Pb0.9La0.1)(Zr0.65Ti0.35)O3陶瓷中电光效应与介电偏振的相关性
DOI：
--
发表时间：
2011
期刊：
影响因子：
--
作者：
武田浩太郎;保科拓也;武田博明;鶴見敬章;武田浩太郎
通讯作者：
武田浩太郎