Optical Dispersion Behavior and Band Gap Energy of Relaxor Ferroelectric 0.92Pb(Mg1/3Nb2/3)O3-0.08PbTiO3 Single Crystal
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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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LIN Yan-Ting, REN Bo, ZHAO Xiang-Yong, WANG Fei-Fei, WANG Yao-Jin, XU Hai-Qing, LIN Di, LUO Hao-Su. Optical Dispersion Behavior and Band Gap Energy of Relaxor Ferroelectric 0.92Pb(Mg1/3Nb2/3)O3-0.08PbTiO3 Single Crystal[J]. Chin. Phys. Lett., 2009, 26(7): 077807. DOI: 10.1088/0256-307X/26/7/077807
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LIN Yan-Ting, REN Bo, ZHAO Xiang-Yong, WANG Fei-Fei, WANG Yao-Jin, XU Hai-Qing, LIN Di, LUO Hao-Su. Optical Dispersion Behavior and Band Gap Energy of Relaxor Ferroelectric 0.92Pb(Mg1/3Nb2/3)O3-0.08PbTiO3 Single Crystal[J]. Chin. Phys. Lett., 2009, 26(7): 077807. DOI: 10.1088/0256-307X/26/7/077807
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LIN Yan-Ting, REN Bo, ZHAO Xiang-Yong, WANG Fei-Fei, WANG Yao-Jin, XU Hai-Qing, LIN Di, LUO Hao-Su. Optical Dispersion Behavior and Band Gap Energy of Relaxor Ferroelectric 0.92Pb(Mg1/3Nb2/3)O3-0.08PbTiO3 Single Crystal[J]. Chin. Phys. Lett., 2009, 26(7): 077807. DOI: 10.1088/0256-307X/26/7/077807
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LIN Yan-Ting, REN Bo, ZHAO Xiang-Yong, WANG Fei-Fei, WANG Yao-Jin, XU Hai-Qing, LIN Di, LUO Hao-Su. Optical Dispersion Behavior and Band Gap Energy of Relaxor Ferroelectric 0.92Pb(Mg1/3Nb2/3)O3-0.08PbTiO3 Single Crystal[J]. Chin. Phys. Lett., 2009, 26(7): 077807. DOI: 10.1088/0256-307X/26/7/077807
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