We report a detailed Raman study of folded acoustic phonons, confined optical phonons, and interface vibrational modes in GaSb/AlSb superlattices grown on [001]-oriented GaSb substrates. A number of unusual features are observed in the intensity dependence of the Raman lines on the incident laser energy, for laser excitations ranging from the electronic transition energies E₁ of GaSb to E₀ of AlSb.
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Santos et al. (1988) studied this question.
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