Interaction of a Surface Acoustic Wave with a Two-dimensional Electron Gas

被引：0
|
作者：
YANG Shi-Jie
ZHAO Hu
YU Yue Department of Physics
机构：
来源：
Communications in Theoretical Physics | 2005年 / 44卷 / 12期
基金：
中国国家自然科学基金;
关键词：
surface acoustic wave; piezoelectric coupling;
D O I：
暂无
中图分类号：
O422 [声的传播];
学科分类号：
070206 ; 082403 ;
摘要：
When a surface acoustic wave (SAW) propagates on the surface of a GaAs semiconductor, coupling betweenelectrons in the two-dimensional electron gas beneath the interface and the elastic host crystal through piezoelectricinteraction will attenuate the SAW. The coupling coefficient is calculated for the SAW propagating along an arbitrarydirection. It is found that the coupling strength is strongly dependent on the propagating direction. When the SAWpropagates along the [011] direction, the coupling becomes quite weak.
引用
收藏
页码：1095 / 1098
页数：4
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