Optical phonons in GaN

T. Azuhata, T. Matsunaga, K. Shimada, K. Yoshida, Takayuki Sota, K. Suzuki, S. Nakamura

    Research output: Contribution to journalArticle

    61 Citations (Scopus)

    Abstract

    We report on all optically active phonon frequencies of wurtzite GaN determined using Raman, infrared reflection, and attenuated total reflection spectra of a high quality GaN film of 2 μm thickness. We also show results of lattice dynamical calculations using a rigid ion model. Force constants and charge as fitting parameters were determined so as to reproduce all zone-center phonon frequencies and sound velocities for the high symmetry lines. We present phonon dispersion curves and phonon density of states of wurtzite GaN.

    Original languageEnglish
    Pages (from-to)493-495
    Number of pages3
    JournalPhysica B: Condensed Matter
    Volume219-220
    Issue number1-4
    DOIs
    Publication statusPublished - 1996 Apr 1

    Fingerprint

    Phonons
    wurtzite
    phonons
    infrared reflection
    Acoustic wave velocity
    acoustic velocity
    Ions
    Infrared radiation
    symmetry
    curves
    ions

    ASJC Scopus subject areas

    • Materials Science(all)
    • Condensed Matter Physics

    Cite this

    Azuhata, T., Matsunaga, T., Shimada, K., Yoshida, K., Sota, T., Suzuki, K., & Nakamura, S. (1996). Optical phonons in GaN. Physica B: Condensed Matter, 219-220(1-4), 493-495. https://doi.org/10.1016/0921-4526(95)00789-X

    Optical phonons in GaN. / Azuhata, T.; Matsunaga, T.; Shimada, K.; Yoshida, K.; Sota, Takayuki; Suzuki, K.; Nakamura, S.

    In: Physica B: Condensed Matter, Vol. 219-220, No. 1-4, 01.04.1996, p. 493-495.

    Research output: Contribution to journalArticle

    Azuhata, T, Matsunaga, T, Shimada, K, Yoshida, K, Sota, T, Suzuki, K & Nakamura, S 1996, 'Optical phonons in GaN', Physica B: Condensed Matter, vol. 219-220, no. 1-4, pp. 493-495. https://doi.org/10.1016/0921-4526(95)00789-X
    Azuhata T, Matsunaga T, Shimada K, Yoshida K, Sota T, Suzuki K et al. Optical phonons in GaN. Physica B: Condensed Matter. 1996 Apr 1;219-220(1-4):493-495. https://doi.org/10.1016/0921-4526(95)00789-X
    Azuhata, T. ; Matsunaga, T. ; Shimada, K. ; Yoshida, K. ; Sota, Takayuki ; Suzuki, K. ; Nakamura, S. / Optical phonons in GaN. In: Physica B: Condensed Matter. 1996 ; Vol. 219-220, No. 1-4. pp. 493-495.
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    AU - Matsunaga, T.

    AU - Shimada, K.

    AU - Yoshida, K.

    AU - Sota, Takayuki

    AU - Suzuki, K.

    AU - Nakamura, S.

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