Raman scattering study of ca modified lead titanate

被引：3
|
作者：
Tsukada, S. [1 ]
Kato, K.
Kano, J.
Yamamoto, T.
Kojima, S.
机构：
[1] Univ Tsukuba, Grad Sch Pure & Appl Sci, Tsukuba, Ibaraki 3058571, Japan
[2] Natl Def Acad, Dept Elect Engn, Yokosuka, Kanagawa 2398686, Japan
来源：
FERROELECTRICS | 2007年 / 355卷
关键词：
lead titanate; Raman scattering; soft mode; perovskite;
D O I：
10.1080/00150190701515931
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The lattice dynamical properties of (Pb(1-x)C(a)x)TiO3 ceramics were investigated by Raman scattering. The low frequency spectra show the strong composition and temperature dependences. The composition dependence of Raman spectra at room temperature is different from the previous work [S.-Y Kuo, C.-T Li and W.-E Hsieh, Phys. Rev. B 69, 184104 (2004).]. This difference is probably attributed to the aging effect of MnO doping. Temperature dependence of Raman spectra of (Pb0.75Ca0.25)TiO3 behaves as expected by the selection rule and the lowest frequency peak softened and broadened as approaching T-c.
引用
收藏
页码：66 / 70
页数：5
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