Lattice vibrations of In1−xGaxAsyP1−y quaternary compounds
- 1 September 1978
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 33 (5), 461-463
- https://doi.org/10.1063/1.90379
Abstract
We report a Raman study of the lattice vibrations of the quaternary compound In1−xGaxAsyP1−y over the whole range of compositions lattice‐matched to InP. The major bands in the spectra show a pseudo‐two‐mode behavior involving the optical phonons of InGaAs and InP. A low‐frequency structure is attributed to disorder‐induced scattering by acoustical vibrations. Weaker bands are assigned to Ga‐P and In‐As pair vibrations.Keywords
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