Structural properties of a GaNxP1-x alloy: Raman studies

I. A. Buyanova*, W. M. Chen, E. M. Goldys, H. P. Xin, C. W. Tu

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    23 Citations (Scopus)


    Raman measurements in backscattering configuration are employed to characterize the effect of nitrogen on the structural properties of a GaNxP1-x alloy with x ≤ 3%. The following effects of N incorporation on the vibrational spectra of GaNP are observed. First, frequencies of GaP-like and GaN-like longitudinal optical phonons exhibit strong compositional dependence, due to a combined effect of alloying and biaxial strain. Second, a dramatic quenching of two-phonon Raman scattering and an emergence of zone-edge GaP-like vibrations are observed. These effects are tentatively attributed to a local distortion of the GaNP lattice and/or compositional disorder in the alloy.

    Original languageEnglish
    Pages (from-to)3959-3961
    Number of pages3
    JournalApplied Physics Letters
    Issue number25
    Publication statusPublished - 18 Jun 2001


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