Impedance spectra of doped bismuth silicate Bi12SiO20: Ge crystals

被引：0
|
作者：
V. T. Avanesyan
N. M. Abramova
机构：
[1] Herzen State Pedagogical University of Russia,
来源：
Physics of the Solid State | 2015年 / 57卷
关键词：
Bismuth; Impedance Spectrum; Lone Electron Pair; Imped Ance; Aquadag;
D O I：
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学科分类号：
摘要：
The specific features of the behavior of the impedance spectra of germanium-doped Bi12SiO20 single crystals with the sillenite structure have been studied. It has been found that the obtained dependences exhibit a dispersion corresponding to the distribution of the relaxation times. An analysis of the experimental data performed by the graphical-analytic method has made it possible to separate the contributions to the conductivity due to the crystal bulk and the sample-electrode interface. The role played by the impurity factor and lone electron pairs of trivalent bismuth ions in the formation of the defect structure of the crystal has been demonstrated.
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页码：1100 / 1102
页数：2
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