X-ray fluorescence holography study on Si1-xGex single crystal

Kouichi Hayashi, Yukio Takahashi, Ichiro Yonenaga, Eiichiro Matsubara

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)

Abstract

We measured the X-ray fluorescence holograms of Si0.999Ge 0.001, Si0.8Ge0.2, Si0.5Ge 0.5, Si0.2Ge0.8 and Ge single crystals, and reconstructed the images of second neighbor atoms around Ge. The positional shift of the atomic image across the whole composition range was three times larger than the value predicted from the difference in the lattice constants of pure Si and Ge. We found that imaginary part of the reconstruction strongly affects the positions of the atomic images. Thus, using the negative real parts, the atomic image became sharp and its shift dependent upon Ge composition comes to the reasonable values.

Original languageEnglish
Pages (from-to)1994-1997
Number of pages4
JournalMaterials Transactions
Volume45
Issue number7
DOIs
Publication statusPublished - 2004 Jul

Keywords

  • Local atomic structure
  • Silicon germanium
  • Single crystal
  • X-ray fluorescence holography

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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