Urbach-Martienssen tails in a wurtzite GaN epilayer

S. Chichibu, T. Mizutani, T. Shioda, H. Nakanishi, T. Deguchi, T. Azuhata, Takayuki Sota, S. Nakamura

    Research output: Contribution to journalArticle

    54 Citations (Scopus)

    Abstract

    Effects of an interaction between the electronic and lattice systems on the optical spectra of a wurtzite GaN epilayer were investigated. The exponentially increasing absorption tail was well explained as an Urbach-Martienssen tail, giving the characteristic phonon energy of 30 meV. The result indicates that few longitudinal optical phonons contribute to the exciton-phonon coupling even at room temperature.

    Original languageEnglish
    Pages (from-to)3440-3442
    Number of pages3
    JournalApplied Physics Letters
    Volume70
    Issue number25
    Publication statusPublished - 1997 Jun 23

    Fingerprint

    wurtzite
    optical spectrum
    phonons
    excitons
    room temperature
    electronics
    interactions
    energy

    ASJC Scopus subject areas

    • Physics and Astronomy (miscellaneous)

    Cite this

    Chichibu, S., Mizutani, T., Shioda, T., Nakanishi, H., Deguchi, T., Azuhata, T., ... Nakamura, S. (1997). Urbach-Martienssen tails in a wurtzite GaN epilayer. Applied Physics Letters, 70(25), 3440-3442.

    Urbach-Martienssen tails in a wurtzite GaN epilayer. / Chichibu, S.; Mizutani, T.; Shioda, T.; Nakanishi, H.; Deguchi, T.; Azuhata, T.; Sota, Takayuki; Nakamura, S.

    In: Applied Physics Letters, Vol. 70, No. 25, 23.06.1997, p. 3440-3442.

    Research output: Contribution to journalArticle

    Chichibu, S, Mizutani, T, Shioda, T, Nakanishi, H, Deguchi, T, Azuhata, T, Sota, T & Nakamura, S 1997, 'Urbach-Martienssen tails in a wurtzite GaN epilayer', Applied Physics Letters, vol. 70, no. 25, pp. 3440-3442.
    Chichibu S, Mizutani T, Shioda T, Nakanishi H, Deguchi T, Azuhata T et al. Urbach-Martienssen tails in a wurtzite GaN epilayer. Applied Physics Letters. 1997 Jun 23;70(25):3440-3442.
    Chichibu, S. ; Mizutani, T. ; Shioda, T. ; Nakanishi, H. ; Deguchi, T. ; Azuhata, T. ; Sota, Takayuki ; Nakamura, S. / Urbach-Martienssen tails in a wurtzite GaN epilayer. In: Applied Physics Letters. 1997 ; Vol. 70, No. 25. pp. 3440-3442.
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    AU - Deguchi, T.

    AU - Azuhata, T.

    AU - Sota, Takayuki

    AU - Nakamura, S.

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