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We report a Raman study of the phonon mode of (AlxGa1−x)0.51In0.49P quaternary alloys lattice matched to GaAs over the whole range of compositions. From the composition dependence of spectra it has been confirmed that the three-mode behavior of the alloy corresponding to the three binary compositions: AlP-, GaP-, and InP-like phonon modes may occur.
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Kubo et al. (1988) studied this question.
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