Local structure around in atoms in InxGa1-xN multi-quantum-wells studied by XAFS

Shinya Sasaki, Takafumi Miyanaga, Takashi Azuhata, Tomoya Uruga, Hajime Tanida, Shigefusa F. Chichibu, Takayuki Sota

研究成果: Conference contribution

1 被引用数 (Scopus)

抄録

Indium K-edge EXAFS measurements were carried out to study local structures around In atoms in InxGa1-xN multi-quantum-well (MQW) structures of 10 periods with In0.2Ga0.8N (2.5 nm) and In0.05Ga0.95N (7.5 nm). We found the following: (1) Debye-Waller factors for In-In and In-Ga atomic pairs in MQW are smaller than those in single QW (SQW) InxGa1-xN. (2) The differences in the interatomic distances of In-In and In-Ga between the horizontal and vertical direction are small. These results indicate that the strain in the InxGa1-xN layer is reduced in MQW in comparison to SQW. (3) In atoms are randomly distributed in both the horizontal and vertical directions of the sample.

本文言語English
ホスト出版物のタイトルX-RAY ABSORPTION FINE STRUCTURE - XAFS13
ホスト出版物のサブタイトル13th International Conference
ページ499-501
ページ数3
DOI
出版ステータスPublished - 2007
イベントX-RAY ABSORPTION FINE STRUCTURE - XAFS13: 13th International Conference - Stanford, CA, United States
継続期間: 2006 7 92006 7 14

出版物シリーズ

名前AIP Conference Proceedings
882
ISSN(印刷版)0094-243X
ISSN(電子版)1551-7616

Conference

ConferenceX-RAY ABSORPTION FINE STRUCTURE - XAFS13: 13th International Conference
国/地域United States
CityStanford, CA
Period06/7/906/7/14

ASJC Scopus subject areas

  • 生態、進化、行動および分類学
  • 生態学
  • 植物科学
  • 物理学および天文学(全般)
  • 自然保全および景観保全

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