Light Scattering Study in Relaxor-Based Ferroelectric (1 − x)Pb(Zn1/3Nb2/3)O3-xPbTiO3

Light Scattering Study in Relaxor-Based Ferroelectric (1 − x)Pb(Zn1/3Nb2/3)O3-xPbTiO3
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弛豫基铁电体 (1 − x)Pb(Zn1/3Nb2/3)O3-xPbTiO3 的光散射研究

DOI:
10.1080/00150190600738063
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发表时间:
2006
期刊:
影响因子:
--
通讯作者:
T. Yagi
T. Yagi
中科院分区:
--
文献类型:
--
作者:
Y. Nakata;Y. Tsujimi;Y. Gorouya;K. Katsuraya;M. Iwata;T. Yagi

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对x=0.0 8、0.0 9、0.11和0.2 0的(1−x)PbTiO3晶体进行了光散射实验。结果表明,(1−x)PbTiO3晶体具有较好的光散射性能。在所有这些样品中都成功地检测到了起源于极性纳米区域(PNR)的中心峰(CP)。通过将德拜弛豫函数与Cp进行拟合,确定了PNR光偏振起伏的驰豫时间τ。利用修正的超顺电体模型分析了τ的温度依赖性,以求出PNRs消失的温度Tp。我们发现温差Tp−Tc(Tc是立方相变到四方相变温度)随x的增加而指数减小,这一发现有力地表明了弛豫子的性质在x=0.15时迅速消失。
Light scattering experiments have been performed in (1−x)Pb(Zn 1/3 Nb 2/3 )O 3 −xPbTiO 3 with x = 0.08, 0.09, 0.11, and 0.20. The central peak (CP) originated from the polar nano region (PNR) is successfully detected in all these samples. The relaxation time τ of the polarization fluctuation of PNR is determined by fitting a Debye relaxation function to the CP. The temperature dependence of τ is analyzed by using a modified superparaelectric model in order to evaluate the temperature T p at which PNRs disappear. We find that temperature difference T p −T c (T c is the cubic to tetragonal phase transition temperature) decreases exponentially with increasing x. This finding strongly indicates that the relaxor's nature disappears rapidly at around x = 0.15.
交流电场下Pb(Zn1/3Nb2/3)O3-PbTiO3的时间分辨X射线衍射
DOI: --
发表时间: 2016
期刊:
影响因子: --
作者:
青柳忍;青柳鮎美;大沢仁志;杉本邦久;竹田翔一;森吉千佳子;黒岩芳弘;岩田真
通讯作者: 岩田真
DOI: 10.1063/1.365983
发表时间: 1997-08-15
影响因子: 3.2
作者:
Park, SE;Shrout, TR
通讯作者: Shrout, TR
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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