Dielectric properties and electrical conduction in yttrium iron garnet (YIG)

被引：114

作者：

Sirdeshmukh, L ^{[1
]}

Kumar, KK ^{[1
]}

Laxman, SB ^{[1
]}

Krishna, AR ^{[1
]}

Sathaiah, G ^{[1
]}

机构：

[1] Kakatiya Univ, Dept Phys, Warangal 506009, Andhra Pradesh, India

来源：

BULLETIN OF MATERIALS SCIENCE | 1998年 / 21卷 / 03期

关键词：

yttrium iron garnet; dielectric constant; conductivity; polaron conduction;

D O I：

10.1007/BF02744973

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The dielectric properties (dielectric constant and loss) of a single crystal of yttrium iron garnet (Y3Fe5O12) were measured in the temperature range 77-725 K and in the frequency range 100 Hz-1 MHz. AC conductivity was derived from dielectric constant and loss. DC conductivity was measured in the temperature range 30-725 K. Thermoelectric power (TEP) was measured from 77-800 K. On the basis of the results, conduction in this garnet is interpreted as due to small polarons. The nature of conduction at different temperature ranges is discussed in the light of existing reports on defect formation.

引用

页码：219 / 226

页数：8

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