The interaction of Rayleigh waves with electrons in two-layer systems with an air gap
Abstract
The effect of a small (less than 0.003 wavelength) air gap on the interaction of Rayleigh waves in lithium niobate-cadmium sulfide and quartz-cadmium sulfide systems was investigated experimentally. The presence of an air gap was found to significantly decrease the amount of electron damping. The electron damping coefficient in a two-layer system can be effectively controlled by varying the size of the air gap by means of a mechanical clamp or by making use of the piezoeffect in a piezodielectric system. The change in the electron damping coefficient due to concentration of electrons in the cadmium sulfide surface layer as the result of the transverse electric field is small.
- Publication:
-
Akusticheskii Zhurnal
- Pub Date:
- April 1976
- Bibcode:
- 1976AkZh...22..288V
- Keywords:
-
- Electron Phonon Interactions;
- Gaps;
- Particle Interactions;
- Rayleigh Waves;
- Surface Acoustic Wave Devices;
- Cadmium Sulfides;
- Electron Density (Concentration);
- Laminates;
- Lithium Niobates;
- Piezoelectricity;
- Quartz;
- Semiconductors (Materials);
- Surface Waves;
- Electronics and Electrical Engineering