| CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES |
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Optical Dispersion Behavior and Band Gap Energy of Relaxor Ferroelectric 0.92Pb(Mg1/3Nb2/3)O3-0.08PbTiO3 Single Crystal |
| LIN Yan-Ting1,2, REN Bo1,2, ZHAO Xiang-Yong1, WANG Fei-Fei1,2, WANG Yao-Jin1,2, XU Hai-Qing1, LIN Di1, LUO Hao-Su1 |
| 1The State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 2018002Graduate School of the Chinese Academy of Sciences, Beijing 100049 |
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| Cite this article: |
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LIN Yan-Ting, REN Bo, ZHAO Xiang-Yong et al 2009 Chin. Phys. Lett. 26 077807 |
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Abstract Refractive indices and extinction coefficients of 0.92Pb(Mg1/3Nb2/3)O3-0.08PbTiO3(PMN-0.08PT) single crystal are investigated by variable angle spectroscopic ellipsometry (VASE) at different wavelengths. The parameters relative to the energy band structure are obtained by fitting to the single-oscillator dispersion equation, and the band gap energy is also deduced from the Tauc equation. Similar to most oxygen-octahedra ferroelectrics, PMN-0.08PT has the same dispersion behavior described by the refractive-index dispersion parameters.
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| Keywords:
78.20.Ci
46.40.Cd
42.25.Lc
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Received: 08 February 2009
Published: 02 July 2009
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| PACS: |
78.20.Ci
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(Optical constants (including refractive index, complex dielectric constant, absorption, reflection and transmission coefficients, emissivity))
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46.40.Cd
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(Mechanical wave propagation (including diffraction, scattering, and dispersion))
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42.25.Lc
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(Birefringence)
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