A NEW TYPE OF SURFACE ACOUSTIC-WAVES INDUCED BY NONLINEARITY

被引：2
|
作者：
KIVSHAR, YS
机构：
[1] Departamento de Física Teórica I, Facultad de Ciencias Físicas, Universidad Complutense
来源：
PHYSICS LETTERS A | 1991年 / 161卷 / 01期
关键词：
D O I：
10.1016/0375-9601(91)90549-N
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
It is demonstrated that nonlinear properties of a thin film coating a linear elastic substrate may lead to the creation of a new type of surface acoustic waves which may exist at the condition c(s)2 < c(f)2, where c(s) and c(f) are the velocities in the substrate and the film, respectively. These waves appear when the amplitude at the surface exceeds a certain threshold value and for a definite sign of the nonlinearity.
引用
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页码：77 / 79
页数：3
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