Study of local segregation in GaInNAs using EXAFS measurements

Takahiro Mori, Takashi Hanada, Toshiharu Morimura, Genki Kobayashi, Takafumi Yao, Takao Miyajima, Tomoya Uruga

研究成果: Article査読

1 被引用数 (Scopus)

抄録

We investigated the local atomic arrangements around In atoms of plasma-assisted molecular beam epitaxy (MBE) grown GaInNAs films using In K-edge extended X-ray absorption fine structure (EXAFS) oscillations. The obtained radial distribution function (RDF) clearly showed two peaks coming from the first nearest In-As bond and the second nearest In-cation bond. These two atomic distances were longer than the bond lengths theoretically calculated under an assumption of random distributions of Ga and In on cation sites and N and As on anion sites, respectively. It means that there are strong In-N and In-In correlations in GaInNAs films. The strong correlations suggest the formation of the InNAs-like particles, which can cause the spacially inhomogeneous emission.

本文言語English
ページ(範囲)298-301
ページ数4
ジャーナルJournal of Physics and Chemistry of Solids
69
2-3
DOI
出版ステータスPublished - 2008 2

ASJC Scopus subject areas

  • 化学 (全般)
  • 材料科学(全般)
  • 凝縮系物理学

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