Surface Elastic Waves in Piezoelectric Semiconductors and Layered Media.
Abstract
Generalized piezoelectric wave equations in piezoelectric semiconductors and layered media are derived. Systems considered are the piezoelectric semiconductor, the two layer piezoelectric insulatorsemiconductor, the three layer piezoelectric insulatorgapsemiconductor, and the four layer piezoelectric insulatorgapsemiconductordielectric substrate. The eigenwave expansion and the iteration methods in the complex domain were used to solve the problems. Mathematically, it represents a solution of the eigenvalue boundary value problem which involves iteration of functions in the complex domain. Solutions obtained are eigenvalues and eigenvectors which include all the information from the wave equations and the boundary conditions. The numerical calculations were conducted for the above mentioned cases, with the conductivity, diffusitivity, carrier mobility, drift velocity, gap width, semiconductor layer width, permitivity of the dielectric substrate and frequency as the parameters.
 Publication:

Ph.D. Thesis
 Pub Date:
 December 1974
 Bibcode:
 1974PhDT........33H
 Keywords:

 Physics: Condensed Matter;
 Elastic Waves;
 Piezoelectricity;
 Semiconductors (Materials);
 Surface Waves;
 Boundary Conditions;
 Boundary Value Problems;
 Carrier Mobility;
 Drift Rate;
 Eigenvalues;
 Insulators;
 Numerical Analysis;
 Wave Equations;
 SolidState Physics