Raman spectroscopic study of ceramic Sr2Bi4Ti5O18

Du Chao-Ling; Zhang Shan-Tao; Lu Ming-Hui; Gu Zheng-Bin; Cheng Guang-Xu; Wang Jia; Chen Yan-Feng

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Raman spectroscopic study of ceramic Sr2Bi4Ti5O18

机译：陶瓷Sr2Bi4Ti5O18的拉曼光谱研究

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机译：Raman spectra of ceramic Sr2Bi4Ti5O18 (SBTi5) are reported to consist of four different Raman bands.Temperature-dependent spectra reveal the relationship between the lattice vibration and the material's structure.There appears a relatively large change in structure of the material at about 273K.The anharmonic potential of the material has a great influence on its phonon mode full width at half maximum (FWHM),which can be expressed by a function of temperature.Theoretical fittings of the FWHMs for the two modes at around 312 cm-1 and 464 cm-1 indicate that the latter phonon mode is more anharmonic than the former one.

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来源
《中国物理：英文版》 |2006年第4期|854-858|共5页
作者
Du Chao-Ling; Zhang Shan-Tao; Lu Ming-Hui; Gu Zheng-Bin; Cheng Guang-Xu; Wang Jia; Chen Yan-Feng;
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作者单位

National Laboratory of Solid State Microstructures Department of Physics Nanjing University Nanjing 210093 China;

National Laboratory of Solid State Microstruetures Department of Materials Science and Engineering Nanjing University Nanjing 210093I China;

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收录信息中国科学引文数据库(CSCD);
原文格式 PDF
正文语种 chi
中图分类物理学;
关键词
Raman spectra; anharmonic potential; superposition; phonon mode;

机译：拉曼光谱非谐电位叠加声子模式;

Raman spectroscopic study of ceramic Sr2Bi4Ti5O18

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