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Interstitial carbon...
Interstitial carbon-oxygen center and hydrogen related shallow thermal donors in Si
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- Coutinho, J. (författare)
- School of Physics, University of Exeter, Exeter EX4 4QL, United Kingdom
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- Jones, R. (författare)
- School of Physics, University of Exeter, Exeter EX4 4QL, United Kingdom
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- Briddon, P.R. (författare)
- Department of Physics, University of Newcastle upon Tyne, Newcastle upon Tyne NE1 7RU, United Kingdom
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- Öberg, Sven (författare)
- Luleå tekniska universitet,Matematiska vetenskaper
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- Murin, L.I. (författare)
- Institute of Solid State and Semiconductor Physics, Minsk 220072, Belarus
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- Markewich, V.P. (författare)
- Department of Electrical Engineering and Electronics and Centre for Electronic Materials, University of Manchester Institute of Science and Technology, Sackville Street, Manchester M601QD, United Kingdom
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- Lindström, J L (författare)
- Lund University,Lunds universitet,Fasta tillståndets fysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Solid State Physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH,Department of Physics, University of Lund, S-221 00 Lund, Sweden
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Murin, LL (författare)
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(creator_code:org_t)
- 2002
- 2002
- Engelska.
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Ingår i: Physical Review B. Condensed Matter and Materials Physics. - 1098-0121 .- 1550-235X. ; 65:1, s. 014109-11
- Relaterad länk:
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http://dx.doi.org/10...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://lup.lub.lu.s...
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Abstract
Ämnesord
Stäng
- The interstitial carbon-oxygen defect is a prominent defect formed in e-irradiated Cz-Si containing carbon. Previous stress alignment investigations have shown that the oxygen atom weakly perturb the carbon interstitial but the lack of a high-frequency oxygen mode has been taken to imply that the oxygen atom is severely affected and becomes overcoordinated. Local vibrational mode spectroscopy and ab initio modeling are used to investigate the defect. We find new modes whose oxygen isotopic shifts give further evidence for oxygen overcoordination. Moreover, we find that the calculated stress-energy tensor and energy levels are in good agreement with experimental values. The complexes formed by adding both single (CiOiH) and a pair of H atoms (CiOiH2), as well as the addition of a second oxygen atom, are considered theoretically. It is shown that the first is bistable with a shallow donor and deep acceptor level, while the second is passive. The properties of CiOiH and CiO2iH are strikingly similar to the first two members of a family of shallow thermal donors that contain hydrogen.
Ämnesord
- NATURVETENSKAP -- Matematik -- Beräkningsmatematik (hsv//swe)
- NATURAL SCIENCES -- Mathematics -- Computational Mathematics (hsv//eng)
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
Nyckelord
- Scientific Computing
- Teknisk-vetenskapliga beräkningar
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- art (ämneskategori)
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