Abstract
The excitation of folded-zone longitudinal acoustic phonons in a-Si:H–a-:H periodic multilayer structures is observed by Raman scattering. The energies of the two lowest folded phonon branches is followed by varying the lattice period and the laser frequency. The data are quantitatively explained by a description of the phonons in the elastic continuum limit.
- Received 10 October 1985
DOI:https://doi.org/10.1103/PhysRevB.33.1516
©1986 American Physical Society