MICROWAVE PHONON ATTENUATION IN MAGNESIUM ALUMINATE SPINEL

被引：26

作者：

LEWIS, MF

PATTERSON, E

机构：

[1] General Electric Company Limited, Central Research Laboratories, Hirst Research Centre, Wembley

来源：

JOURNAL OF APPLIED PHYSICS | 1968年 / 39卷 / 07期

关键词：

D O I：

10.1063/1.1656791

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Measurements are reported of the attenuation of microwave phonons of various modes in magnesium aluminate spinel (MgAl2O4). The attenuation of certain modes is lower than in any other material measured and permits the observation of 9000 MHz echo patterns at room temperature. Some possible applications of this discovery are discussed. The attenuation at room temperature is interpreted in terms of an effective viscosity damping mechanism and approximate values of the components of the viscosity matrix are given. © 1968 The American Institute of Physics.

引用

页码：3420 / +

页数：1

共 39 条

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