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Local vibrational m...
Local vibrational modes of weakly bound O-H complexes in SI
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- Nielsen, B. Bach (författare)
- Institute of Physics and Astronomy, University of Aarhus
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- Tanderup, K. (författare)
- Institute of Physics and Astronomy, University of Aarhus
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- Budde, M. (författare)
- Institute of Physics and Astronomy, University of Aarhus
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- Bonde-Nielsen, K. (författare)
- Institute of Physics and Astronomy, University of Aarhus
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- Lindström, J.L. (författare)
- Department of Physics, Linköping University
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- Jones, R. (författare)
- Department of Physics, University of Exeter
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- Öberg, Sven (författare)
- Luleå tekniska universitet,Matematiska vetenskaper
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- Hourahine, B. (författare)
- Department of Physics, University of Newcastle
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- Briddon, P. (författare)
- Department of Physics, University of Newcastle
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(creator_code:org_t)
- Trans Tech Publications Inc. 1997
- 1997
- Engelska.
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Ingår i: Defects in semiconductors. - : Trans Tech Publications Inc.. ; , s. 391-398
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.4...
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Abstract
Ämnesord
Stäng
- Local vibrational modes of two oxygen-hydrogen complexes have been identified with infrared absorption spectroscopy. Samples of intrinsic silicon and samples doped with 16O or 18O isotopes were implanted with protons and deuterons at ∼20 K. After the implantation, infrared absorbance spectra were measured at 8 K on unannealed samples. An oxygen mode at 1077 cm-1 and a hydrogen mode at 1879 cm-1, which originate from the same defect OHI were observed in the as-implanted samples. Heat-treatment at 200 K produced a new center OHII with modes at 1028 and 1830 cm-1. OHI anneals out at ∼130 K while OHII is stable up to ∼240 K. OHI and OHII are tentatively identified with two complexes of interstitial oxygen and bond-centred hydrogen. Ab initio theory was applied to calculate the structure and local modes of three such complexes. The results qualitatively support our tentative assignments.
Ämnesord
- NATURVETENSKAP -- Matematik -- Beräkningsmatematik (hsv//swe)
- NATURAL SCIENCES -- Mathematics -- Computational Mathematics (hsv//eng)
Nyckelord
- Scientific Computing
- Teknisk-vetenskapliga beräkningar
Publikations- och innehållstyp
- ref (ämneskategori)
- kon (ämneskategori)