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Brillouin Scattering from Surface Phonons in Al-Coated Semiconductors BORTOLANI, Virginio ; F. NIZZOLI; SANTORO, Giorgio ; A. MARVIN; J. R. SANDERCOCK 1979 Abstract Brillouin spectra from thermally excited surface acoustic phonons in GaAs and Si surfaces coated with a thin Al film are presented. The measurements show features different from the Al and the semiconductor surfaces. We are able to give a theoretical explanation of the experimental results in terms of the coupling between the normal modes of the film and of the substrate.
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Bortolani et al. (1979) studied this question.
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