| 铌酸锂晶体的暗电导研究 |
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| 引用本文： | 吴论生. 铌酸锂晶体的暗电导研究[J]. 西南师范大学学报(自然科学版), 2011, 36(6) |
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| 作者姓名： | 吴论生 |
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| 作者单位： | 重庆青年职业技术学院; |
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| 摘 要： | 通过对不同组分比(Li/Nb)纯铌酸锂(LiNbO3)晶体电压和电流的测量,发现不同组分比晶体的电导率随温度变化而变化的程度不同.提出小极化子对电导率的作用机制,并分析了LiNbO3晶体中双极化子和小极化子对电导率的影响.最后对所测量的电导率进行拟合,得到了不同组分比晶体的激活能.
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| 关 键 词： | 铌酸锂晶体 电导率 双极化子 小极化子 |
Study on Electrical Conductivity of Lithium Niobate |
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| WU Lun-sheng Chongqing Youth Vocational , Technical College,Chingqing ,China. Study on Electrical Conductivity of Lithium Niobate[J]. Journal of southwest china normal university(natural science edition), 2011, 36(6) |
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| Authors: | WU Lun-sheng Chongqing Youth Vocational Technical College Chingqing China |
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| Affiliation: | WU Lun-sheng Chongqing Youth Vocational and Technical College,Chingqing 400712,China |
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| Abstract: | The pure LiNbO3 crystals with different ratio Li/Nb are tested.Through the measurement of the voltage and the current,it is found that the conductivity of crystals with different Li/Nb ratio vary with temperature at different rate.Moreover,the mechanism of action of polaron on the conductivity is proposed and the influence of the bipolaron and polaron on the conductivity is analyzed.Finally,through fitting a curve to the conductivity measured,we get the activation energies of crystals with different ratio L... |
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| Keywords: | lithium niobate electrical conductivity bipolaron polaron |
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