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Anomalous bismuth-stabilized (2x1) reconstructions on GaAs(100) and InP(100) surfaces
- Laukkanen, P. (author)
- Punkkinen, M. P. J. (author)
- Komsa, H. P. (author)
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- Ahola-Tuomi, M. (author)
- Kokko, K. (author)
- Kuzmin, M. (author)
- Perala, R. E. (author)
- Ropo, M. (author)
- Rantala, T. T. (author)
- Vayrynen, I. J. (author)
- Pessa, M. (author)
- Kollar, J. (author)
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- (creator_code:org_t)
- 2008
- 2008
- English.
- In: Physical Review Letters. - 0031-9007 .- 1079-7114. ; 100, s. 086101-
- Journal article (peer-reviewed)
Abstract
Subject headings
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- First-principles phase diagrams of bismuth-stabilized GaAs- and InP(100) surfaces demonstrate for the first time the presence of anomalous (2 x 1) reconstructions, which disobey the common electron counting principle. Combining these theoretical results with our scanning-tunneling-microscopy and photoemission measurements, we identify novel (2 x 1) surface structures, which are composed of symmetric Bi-Bi and asymmetric mixed Bi-As and Bi-P dimers, and find that they are stabilized by stress relief and pseudogap formation.
Subject headings
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
Keyword
- semiconductor 001 surfaces
- electron counting model
- augmented-wave
- method
- gaas(001) surface
- bi
- Physics
Publication and Content Type
- ref (subject category)
- art (subject category)
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- Laukkanen, P.
- Punkkinen, M. P. ...
- Komsa, H. P.
- Ahola-Tuomi, M.
- Kokko, K.
- Kuzmin, M.
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- Adell, Johan, 19 ...
- Sadowski, Janusz
- Perala, R. E.
- Ropo, M.
- Rantala, T. T.
- Vayrynen, I. J.
- Pessa, M.
- Vitos, Levente
- Kollar, J.
- Mirbt, Susanne
- Johansson, Börje
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