Lookup NU author(s): Professor Patrick Briddon
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Local mode spectroscopy and ab initio modeling are used to investigate two trigonal defects found in carbon rich Si into which H had been in-diffused. Isotopic shifts with D and 13C are reported along with the effect of uniaxial stress. Ab-initio modeling studies suggest that the two defects are two forms of the CH2* complex where one of the two hydrogen atoms lies at an anti-bonding site attached to C or Si respectively. The two structures are nearly degenerate and possesess vibrational modes in good agreement with those observed experimentally. The defects are energetically favorable in comparison with separated Cs and H2 in Si and may represent aggregation sites for hydrogen.
Author(s): Markevich VP, Hourahine B, Newman RC, Jones R, Kleverman M, Lindstrom JL, Murin LI, Suezawa M, Oberg S, Briddon PR
Publication type: Article
Publication status: Published
Journal: Diffusion and Defect Data. Pt A Defect and Diffusion Forum
Print publication date: 01/01/2003
ISSN (print): 1012-0386
Publisher: Scitec Publications Ltd.
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