Journal article
Amplification of surface acoustic waves by transverse electric current in piezoelectric semiconductors
It is shown that the principal characteristic feature of the surface acoustic waves in piezoelectrics—the presence of an alternating electric field transverse to the surface, which can be of the same order of magnitude as the longitudinal field—may not only give rise to the known transverse acoustoelectric effect but also lead to amplification of surface acoustic waves by electron drift perpendicular to the surface.
For Love waves in a piezoelectric semiconductor film on a highly conducting substrate, the amplification coefficient is found and the conditions necessary for amplification are investigated. ©1974 American Institute of Physics
Language: | English |
---|---|
Publisher: | American Institute of Physics |
Year: | 1974 |
Pages: | 405-406 |
ISSN: | 10773118 and 00036951 |
Types: | Journal article |
DOI: | 10.1063/1.1655236 |