Irreversible anomalies in the electrical properties of oxides with the tetragonal tungsten bronze structure

被引：0

作者：

Gurnikovskii, IA ^{[1
]}

Bermus, AG ^{[1
]}

Rudkovskaya, LM ^{[1
]}

Bunina, OA ^{[1
]}

机构：

[1] Rostov State Univ, Phys Res Inst, Rostov On Don 344090, Russia

来源：

INORGANIC MATERIALS | 2000年 / 36卷 / 11期

关键词：

Dielectric Permittivity; Lithium Niobate; Spontaneous Polarization; Isothermal Holding; Lead Titanate;

D O I：

10.1007/BF02758932

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The anomalies in the electrical properties of (Pb,Sr,Ba)(4)Li2Nb10O30 solid solutions were studied by measuring dielectric permittivity and electrical conductivity as functions of temperature and time (during isothermal holding). The anomalies were shown to occur in defect-rich ferroelectrics. Both the dielectric permittivity and conductivity vary exponentially with time during isothermal holding. The effects of heating rate and UV irradiation time are analyzed. The results can be accounted for in the framework of a fluctuation-cluster model.

引用

页码：1133 / 1136

页数：4

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