EMISSION OF GHZ SHEAR-WAVES BY FERROELASTIC DOMAIN-WALLS IN FERROELECTRICS

被引：61

作者：

ARLT, G

BOTTGER, U

WITTE, S

机构：

[1] Institut fur Werkstoffe der Elektrotechnik, Aachen University of Technology

来源：

APPLIED PHYSICS LETTERS | 1993年 / 63卷 / 05期

关键词：

D O I：

10.1063/1.109962

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The 90-degrees domain walls and comparable ferroelectric domain walls are strong sound emitters in the GHz range. The elastic medium on both sides of the domain wall with its mass and elastic properties is a quasi-infinite transmission line into which the sound is emitted. This emission causes a strong dielectric dispersion at GHz frequencies and may form the basis for many dispersive effects in this frequency range which were observed during the last 40 years in many ferroelectric and even some magnetic materials. A simple elastic-electric equivalent circuit describes the mechanism of sound emission.

引用

页码：602 / 604

页数：3

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