Temperature dependence of dielectric functions in Yb2O3 and Lu2O3 epitaxial thin films on sapphire (0001)

Material type: 文書・図像類

Author: Takayuki, Makinoほか

Publisher: IOP Publishing

Publication date: 2019-12-05

Material Format: Digital

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Note (General)：: The fundamental band-gaps of Yb2O3 and Lu2O3 films on sapphire (0001) substrates grown by pulsed laser deposition have been measured by optical transm...

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Material Type: 文書・図像類
Title: Temperature dependence of dielectric functions in Yb2O3 and Lu2O3 epitaxial thin films on sapphire (0001)
Author/Editor: Takayuki, Makino
Takaho, Asai
Tomoya, Takeuchi
Kenichi, Kaminaga
Daichi, Oka
Tomoteru, Fukumura
Author Heading: Takayuki, Makino
Takaho, Asai
Tomoya, Takeuchi
Kenichi, Kaminaga
Daichi, Oka
Tomoteru, Fukumura
Publication, Distribution, etc.: IOP Publishing
Publication Date: 2019-12-05
Publication Date (W3CDTF): 2019-12-05
Periodical title: Japanese Journal of Applied Physics
No. or year of volume/issue: 59 SC
Volume: 59
Issue: SC
ISSN (Periodical Title): ISSN : 0021-4922
ISSN : 1347-4065
Text Language Code: eng
Subject Heading: optical properties
vibrational properties
ab-initio calculation
phononic structure
Target Audience: 一般
Note (General): The fundamental band-gaps of Yb2O3 and Lu2O3 films on sapphire (0001) substrates grown by pulsed laser deposition have been measured by optical transmission and reflectance spectroscopies as a function of temperature. The temperature dependence of the band-gap was analyzed by a model based on phonon dispersion effects and could be explained in terms of phonon-related parameters such as the optical phonon temperature. The phonon dispersion in Yb2O3 was found to fall into material trend based on the data for a large variety of element and binary semiconductors.
Access Restrictions: 限定公開
Related Material (DOI): 10.7567/1347-4065/ab4a88
Data Provider (Database): 国立情報学研究所 : 学術機関リポジトリデータベース（IRDB）（機関リポジトリ）
https://irdb.nii.ac.jp
Original Data Provider (Database): 福井大学 : 福井大学学術機関リポジトリ