Polarized micro-Raman study of the field-induced phase transition in the relaxor 0.67PbMg1/3Nb2/3O3-0.33PbTiO3 single crystal

被引：25
|
作者：
Yang, Y. [1 ]
Liu, Y. L. [1 ]
Ma, S. Y. [2 ]
Zhu, K. [1 ]
Zhang, L. Y. [1 ]
Cheng, J. [3 ]
Siu, G. G. [3 ]
Xu, Z. K. [3 ]
Luo, H. S. [4 ]
机构：
[1] Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China
[2] Guangxi Univ, Coll Phys Sci & Technol, Nanning 530004, Peoples R China
[3] City Univ Hong Kong, Dept Phys & Mat Sci, Hong Kong, Hong Kong, Peoples R China
[4] Chinese Acad Sci, Shanghai Inst Ceram, Shanghai 200050, Peoples R China
来源：
APPLIED PHYSICS LETTERS | 2009年 / 95卷 / 05期
关键词：
crystal structure; electromechanical effects; ferroelectric transitions; lead compounds; magnesium compounds; Raman spectra; relaxor ferroelectrics; BOUNDARY REGION; NIOBATE; PB(MG1/3NB2/3)(1-X)TIXO3; ROTATION;
D O I：
10.1063/1.3194149
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Polarized Raman spectroscopy has been performed to investigate the effects of the electric field on 0.67PbMg(1/3)Nb(2/3)O(3)-0.33PbTiO(3) (PMN-33%PT) single crystal. The electric-field-evolution of Raman spectra differed from one microarea to another. In the crossed polarization geometry, the abrupt changes in the intensities of the Raman bands at around 570 and 780 cm(-1) indicated the occurrence of the field induced phase transition from the M-C-type to the M-A-type monoclinic structure. On the other hand, the Raman spectra for the microarea that was initially in the M-A phase exhibited no obvious changes. All these results revealed the microheterogeneity in PMN-33%PT single crystal, which is useful for understanding the field-induced superior electromechanical properties.
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页数：3
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