Polarized Raman spectroscopy has been employed to investigate the evolution of the microstructure of 0.67PbMg1/3Nb2/3O3-0.33PbTiO3 (PMN-33%PT) single crystal in the temperature range from −195 to 300 °C. The MA-MC-cubic transition sequence was observed in the microareas with MA-type (space group Cm) and MC-type (space group Pm) monoclinic structures. Interestingly, the MA-MC phase transition temperature exhibited remarkable microareal dependence due to the spatial inhomogeneity of polar nanoregions (PNRs). The MC-cubic phase transition took place at 155 °C in both microareas, which consisted well with previous reports. These results reveal that the phase transition in PMN-33%PT single crystal is closely related with the thermal dynamics of PNRs, which will be useful for understanding the microheterogeneity in this compound.
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15 April 2011
Research Article|
April 20 2011
Micro-Raman study of the microheterogeneity in the MA-MC phase transition in 0.67PbMg1/3Nb2/3O3-0.33PbTiO3 single crystal
Y. Yang;
Y. Yang
a)
1Advanced Nanofabrication and Imaging Core Laboratory,
King Abdullah University of Science and Technology (KAUST)
, Thuwal 23955-6900, Saudi Arabia
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L. Y. Zhang;
L. Y. Zhang
2
The Institute of Physics, Chinese Academy of Sciences
, Beijing 100190, China
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K. Zhu;
K. Zhu
2
The Institute of Physics, Chinese Academy of Sciences
, Beijing 100190, China
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a)
Electronic mail: yang.yang@kaust.edu.sa.
b)
Electronic mail: ylliu@aphy.iphy.ac.cn.
J. Appl. Phys. 109, 083517 (2011)
Article history
Received:
November 16 2010
Accepted:
March 10 2011
Citation
Y. Yang, L. Y. Zhang, K. Zhu, Y. L. Liu; Micro-Raman study of the microheterogeneity in the MA-MC phase transition in 0.67PbMg1/3Nb2/3O3-0.33PbTiO3 single crystal. J. Appl. Phys. 15 April 2011; 109 (8): 083517. https://doi.org/10.1063/1.3574666
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