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Raman scattering study of relaxor ferroelectric Pb(Sc1/2Nb1/2)O3 crystals
被引:0
|作者:
Kohei Suzuki
Seiji Kojima
Muhtar Ahart
Yonghong Bing
Zuo-Guang Ye
机构:
[1] University of Tsukuba,Pure and Applied Sciences
[2] Carnegie Institution of Washington,Geophysical Laboratory
[3] Simon Fraser University,Department of Chemistry and 4D LABS
来源:
关键词:
Relaxor;
Ferroelectric;
Raman scattering;
Phonon;
Depolarization ratio;
D O I:
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学科分类号:
摘要:
The effects of B-site ordering and vacancies were studied in the relaxor ferroelectric Pb(Sc1/2Nb1/2)O3 (PSN) family by using Raman scattering spectroscopy. Differences with Raman spectra and the depolarization ratios were clearly observed among B-site disordered PSN (PSN-D), B-site ordered with lead/oxygen vacancies PSN (PSN-OV), and 0.7Pb(Sc1/2Nb1/2)O3-0.3PbTiO3 (PSN-30PT) single crystals. The temperature dependence of the depolarization ratio of PSN-30PT was also studied to clarify the ferroelectric phase transitions and the polarization fluctuations in the polar nanoregions.
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页码:1125 / 1128
页数:3
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