Urbach-Martienssen tails in a wurtzite GaN epilayer

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

doi:10.1063/1.119196

Urbach-Martienssen tails in a wurtzite GaN epilayer

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

^*この研究の対応する著者

先進理工学部

研究成果: Article › 査読

62 被引用数 (Scopus)

抄録

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.

本文言語	English
ページ（範囲）	3440-3442
ページ数	3
ジャーナル	Applied Physics Letters
巻	70
号	25
DOI	https://doi.org/10.1063/1.119196
出版ステータス	Published - 1997 6月 23

ASJC Scopus subject areas

物理学および天文学（その他）

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10.1063/1.119196

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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.",

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AU - Chichibu, S.

AU - Mizutani, T.

AU - Shioda, T.

AU - Nakanishi, H.

AU - Deguchi, T.

AU - Azuhata, T.

AU - Sota, T.

AU - Nakamura, S.

PY - 1997/6/23

Y1 - 1997/6/23

N2 - 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.

AB - 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.

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Urbach-Martienssen tails in a wurtzite GaN epilayer

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