Host isotope effect on the local vibration modes of VH2 and VOH2 defects in isotopically enriched28Si, 29Si and30Si single crystals

Takeru Ohya, Kohei M. Itoh, Rui N. Pereira, Brian Bech Nielsen

研究成果: Article

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Local vibrational modes of a vacancy with two hydrogen atoms (VH 2) and of a vacancy with one oxygen and two-hydrogen atoms (VOH 2) in silicon have been investigated using isotopically enriched 28Si, 29Si, and 30Si single crystals. Infrared absorption spectroscopy revealed shifts in the Si-H stretch frequencies of the two defects when the mass of the silicon host atoms was changed. The observed stretch frequencies can for each defect be accounted for with a simple vibrational model based on two coupled Morse oscillators. The anharmonic contribution to the local vibrational mode frequencies of these two defects is evaluated.

元の言語English
ページ(範囲)7309-7313
ページ数5
ジャーナルJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
44
発行部数10
DOI
出版物ステータスPublished - 2005 10 11

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

フィンガープリント Host isotope effect on the local vibration modes of VH<sub>2</sub> and VOH<sub>2</sub> defects in isotopically enriched<sup>28</sup>Si, <sup>29</sup>Si and<sup>30</sup>Si single crystals' の研究トピックを掘り下げます。これらはともに一意のフィンガープリントを構成します。

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