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Observation of folded-zone acoustical phonons by Raman scattering in amorphous Si-SiNx superlattices

P. Santos, M. Hundhausen, and L. Ley
Phys. Rev. B 33, 1516(R) – Published 15 January 1986
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Abstract

The excitation of folded-zone longitudinal acoustic phonons in a-Si:H–a-SiNx: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

Authors & Affiliations

P. Santos, M. Hundhausen, and L. Ley

  • Max-Planck-Institut für Festkör- perforschung, Heisenbergstrasse 1, D-7000 Stuttgart 80, Federal Republic of Germany

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Vol. 33, Iss. 2 — 15 January 1986

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