FAR INFRARED SPECTROSCOPY AND ORIGIN OF MICROWAVE LOSSES IN LOW-LOSS CERAMICS

被引：53

作者：

Petzelt, J. ^{[1
]}

Setter, N. ^{[2
]}

机构：

[1] Acad Sci Czech Republ, Inst Phys, Prague 18040 8, Czech Republic

[2] EPFL, Lab Ceram, MX D Ecublens, CH-1015 Lausanne, Switzerland

来源：

FERROELECTRICS | 1993年 / 150卷 / 01期

关键词：

microwave ceramics; dielectric losses; far infrared spectroscopy; submillimetre spectroscopy; polar phonon modes;

D O I：

10.1080/00150199308008697

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The theory of intrinsic and extrinsic microwave and far-infrared losses is briefly reviewed and compared with experimental results obtained on low-loss ceramic materials using infrared reflectivity, submillimetre and near-millimetre transmission technique. The problem of extrapolation of the losses from polar mode range down to the microwave region is discussed. The influence of the basic ionic parameters on the intrinsic microwave losses and permittivity is discussed for the cubic complex perovskite Ba(B'B-1/2"(1/2))O-3 system. Possibilities for further research are suggested.

引用

页码：89 / 102

页数：14

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