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Structure of ordere...
Structure of ordered oxide on InAs(100) surface
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- Punkkinen, Marko P. J. (author)
- KTH,Tillämpad materialfysik
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Laukkanen, P. (author)
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Lang, J. (author)
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Kuzmin, M. (author)
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Dahl, J. (author)
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- Zhang, Hualei (author)
- KTH,Tillämpad materialfysik
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Pessa, M. (author)
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Guina, M. (author)
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- Vitos, Levente (author)
- KTH,Uppsala universitet,Materialteori,Tillämpad materialfysik
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Kokko, K. (author)
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(creator_code:org_t)
- Elsevier BV, 2012
- 2012
- English.
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In: Surface Science. - : Elsevier BV. - 0039-6028 .- 1879-2758. ; 606:23-24, s. 1837-1841
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Subject headings
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- It was recently found that oxygen induces ordered reconstructions on several III-V surfaces. The most oxygen-rich reconstruction shows (3x1) periodicity. Based on first-principles investigations, a detailed atomic model is presented for this reconstruction. The uncommon periodicity is attributed to the highly stable In - O - In trilayer below surface which also leads to stabilizing additional bonds within the surface layer. The strain induced by the trilayer is more effectively accommodated within the (3 x 1) reconstruction than within the competing (2 x 1) reconstruction due to smaller number of dimers. It is proposed that the experimentally found semiconductivity is reached by substitutional atoms within the surface layer. Suitable substitution preserves the magnitude of the bulk band gap. (C) 2012 Elsevier B.V. All rights reserved.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Materialteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering (hsv//eng)
Keyword
- Ab initio calculations
- Indium arsenide
- Oxide
- Surface reconstruction
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Punkkinen, Marko ...
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Laukkanen, P.
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Lang, J.
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Kuzmin, M.
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Dahl, J.
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Zhang, Hualei
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show more...
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Pessa, M.
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Guina, M.
-
Vitos, Levente
-
Kokko, K.
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show less...
- About the subject
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- ENGINEERING AND TECHNOLOGY
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ENGINEERING AND ...
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and Materials Engine ...
- Articles in the publication
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Surface Science
- By the university
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Uppsala University
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Royal Institute of Technology