Polarized Raman Study in Pb(Zn1/3Nb2/3)O3-PbTiO3 Mixed Crystal

Polarized Raman Study in Pb(Zn1/3Nb2/3)O3-PbTiO3 Mixed Crystal
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Pb(Zn1/3Nb2/3)O3-PbTiO3 混晶的偏振拉曼研究

DOI:
10.1080/00150190802440856
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发表时间:
2008
期刊:
影响因子:
0.8
通讯作者:
Y. Ishibashi
Y. Ishibashi
中科院分区:
材料科学4区
文献类型:
--
作者:
M. Iwata;Y. Hasegawa;R. Aoyagi;M. Maeda;N. Wakiya;Hisao Suzuki;Y. Ishibashi

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对0.8Pb(Zn 1/3 Nb 2/3) o3 -0.2 pbtio3 (PZN-20%PT)晶体的极化样品进行了400 cm−1以下几种光学几何形状的拉曼散射实验。在低频区域分配了拉曼模式。结果表明,PZN-20%PT中的低频拉曼模式主要是由准电立方Pm m结构的极性畸变引起的。发现pzn型弛豫器的拉曼散射对非均匀铁电畸变或立方相中极性纳米区的存在很敏感。与pbtio3的四方相软模式相对应的E(TO1)和a1 (TO1)模式与PZN-20%PT中铁电相变点附近的温度完全无关。
The Raman scattering experiment in several optical geometries below 400 cm−1 was carried out in the poled sample of the 0.8Pb(Zn 1/3 Nb 2/3 )O 3 -0.2PbTiO 3 (PZN-20%PT) crystal. Raman modes in the low frequency region were assigned. It was concluded that the low frequency Raman modes in PZN-20%PT are mainly due to a polar distortion of the paraelectric cubic Pm m structure. The Raman scattering was found to be sensitive to the inhomogeneous ferroelectric distortion or existence of the polar nano-region in the cubic phase of the PZN-type relaxor. Both the E(TO1) and A 1 (TO1) modes, corresponding to the soft modes in the tetragonal phase of PbTiO 3 , do not at all depend on temperature near the ferroelectric phase transition point in PZN-20%PT.
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