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Lookup NU author(s): Richard Jones, Professor Patrick Briddon
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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 similar to 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.
Author(s): Lavrov EV, Hoffmann L, Bech Nielsen B, Hourahine B, Jones R, Oberg S, Briddon PR
Publication type: Article
Publication status: Published
Journal: Physical Review B
Year: 2000
Volume: 61
Issue: 24
Pages: 16659-16666
ISSN (print): 1098-0121
ISSN (electronic): 1550-235X
Publisher: American Physical Society
URL: http://dx.doi.org/10.1103/PhysRevB.61.16659
DOI: 10.1103/PhysRevB.61.16659
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