Nanoscale investigation of a Rayleigh wave on LiNbO3

被引：0

作者：

Yang, J ^{[1
]}

Koch, R ^{[1
]}

机构：

[1] Paul Drude Inst Festkorperelekt, D-10117 Berlin, Germany

来源：

Scanning Probe Microscopy: Characterization, Nanofabrication and Device Application of Functional Materials | 2005年 / 186卷

关键词：

surface acoustic waves; elastic properties of solid; scanning tunneling microscope;

D O I：

暂无

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The scanning tunneling microscope (STM) after sophisticated modification is a powerful technique to investigate surface acoustic waves (SAWs) with high spatial resolution. Using our ultra high vacuum SAW-STM, a Rayleigh wave propagating in LiNbO3 has been characterized. In accordance with a previous model, the amplitude and phase signals extracted from the modulated tunneling current depend on the surface inclination and the eccentricity beta of the SAW. From comparison with simulated amplitude and phase images a value for beta = 35-40 degrees is obtained in good agreement with the theoretical eccentricity of the Rayleigh wave.

引用

页码：399 / 404

页数：6

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