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Weakly bound carbon-hydrogen complex in silicon
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- Hoffmann, L. (author)
- Institute of Physics and Astronomy, Aarhus University, Aarhus, Denmark
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- Lavrov, E. V. (author)
- Institute of Physics and Astronomy, Aarhus University, Aarhus, Denmark
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- Bech Nielsen, B. (author)
- Institute of Physics and Astronomy, Aarhus University, Aarhus, Denmark
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- (creator_code:org_t)
- 2000
- 2000
- English.
- In: Physical Review B. Condensed Matter and Materials Physics. - 1098-0121 .- 1550-235X. ; 61:24, s. 16659-16666
- Journal article (peer-reviewed)
Abstract
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- Local vibrational modes of a weakly bound carbon-hydrogen complex in silicon have been identified with infrared-absorption spectroscopy. After implantation of protons at ∼20 K and subsequent annealing at 180 K, two carbon modes at 596 and 661 cm-1, and one hydrogen mode at 1885 cm-1 are observed. The three modes originate from the same complex, which is identified as bond-centered hydrogen in the vicinity of a nearby substitutional carbon atom. Ab initio theory has been applied to calculate the structure and local modes of carbon-hydrogen complexes with hydrogen located at the first, second, and third nearest bond-center site to substitutional carbon. The results support our assignment.
Subject headings
- NATURVETENSKAP -- Matematik -- Beräkningsmatematik (hsv//swe)
- NATURAL SCIENCES -- Mathematics -- Computational Mathematics (hsv//eng)
Keyword
- Scientific Computing
- Teknisk-vetenskapliga beräkningar
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- Hoffmann, L.
- Lavrov, E. V.
- Bech Nielsen, B.
- Hourahine, B.
- Jones, R.
- Öberg, Sven
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- Briddon, P. R.
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- NATURAL SCIENCES
- NATURAL SCIENCES
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- Luleå University of Technology
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