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Weakly bound carbon-hydrogen complex in silicon

Lookup NU author(s): Richard Jones, Professor Patrick Briddon

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Abstract

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.


Publication metadata

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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