NONSTOICHIOMETRY AND CONDUCTIVITY ANISOTROPY OF LEAD GERMANATE SINGLE CRYSTALS

被引：0
|
作者：
Ermakov, A. S. [1 ]
Duda, V. M. [1 ]
机构：
[1] O Gonchar Dnipropetrovsk Natl Univ, 13 Naukova Str, UA-49050 Dnepropetrovsk, Ukraine
来源：
UKRAINIAN JOURNAL OF PHYSICS | 2010年 / 55卷 / 02期
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中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The conductivity of lead germanate single crystals with the stoichiometric composition, PbO deficiency, and PbO excess has been measured. A reduction of the PbO fraction in the initial blend leads to a considerable increase of the conductivity, because the fraction of lead ions which change their valency from Pb2+ to Pb3+ grows. The relative arrangement of lead ions, which are able to change their valency and trap holes, can be responsible for a significant anisotropy of conductivity.
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页码：218 / 221
页数：4
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