Anomalous bismuth-stabilized (2×1) reconstructions on GaAs(100) and InP(100) surfaces

P. Laukkanen, M. P J Punkkinen, H. P. Komsa, M. Ahola-Tuomi, K. Kokko, M. Kuzmin, J. Adell, J. Sadowski, R. E. Perälä, M. Ropo, T. T. Rantala, I. J. Väyrynen, M. Pessa, L. Vitos, J. Kollár, S. Mirbt, B. Johansson

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Abstract

First-principles phase diagrams of bismuth-stabilized GaAs- and InP(100) surfaces demonstrate for the first time the presence of anomalous (2×1) reconstructions, which disobey the common electron counting principle. Combining these theoretical results with our scanning-tunneling-microscopy and photoemission measurements, we identify novel (2×1) 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.

Original languageEnglish
Article number086101
JournalPhysical Review Letters
Volume100
Issue number8
DOIs
Publication statusPublished - Feb 25 2008

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bismuth
scanning tunneling microscopy
counting
photoelectric emission
dimers
phase diagrams
electrons

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Laukkanen, P., Punkkinen, M. P. J., Komsa, H. P., Ahola-Tuomi, M., Kokko, K., Kuzmin, M., ... Johansson, B. (2008). Anomalous bismuth-stabilized (2×1) reconstructions on GaAs(100) and InP(100) surfaces. Physical Review Letters, 100(8), [086101]. https://doi.org/10.1103/PhysRevLett.100.086101

Anomalous bismuth-stabilized (2×1) reconstructions on GaAs(100) and InP(100) surfaces. / Laukkanen, P.; Punkkinen, M. P J; Komsa, H. P.; Ahola-Tuomi, M.; Kokko, K.; Kuzmin, M.; Adell, J.; Sadowski, J.; Perälä, R. E.; Ropo, M.; Rantala, T. T.; Väyrynen, I. J.; Pessa, M.; Vitos, L.; Kollár, J.; Mirbt, S.; Johansson, B.

In: Physical Review Letters, Vol. 100, No. 8, 086101, 25.02.2008.

Research output: Contribution to journalArticle

Laukkanen, P, Punkkinen, MPJ, Komsa, HP, Ahola-Tuomi, M, Kokko, K, Kuzmin, M, Adell, J, Sadowski, J, Perälä, RE, Ropo, M, Rantala, TT, Väyrynen, IJ, Pessa, M, Vitos, L, Kollár, J, Mirbt, S & Johansson, B 2008, 'Anomalous bismuth-stabilized (2×1) reconstructions on GaAs(100) and InP(100) surfaces', Physical Review Letters, vol. 100, no. 8, 086101. https://doi.org/10.1103/PhysRevLett.100.086101
Laukkanen P, Punkkinen MPJ, Komsa HP, Ahola-Tuomi M, Kokko K, Kuzmin M et al. Anomalous bismuth-stabilized (2×1) reconstructions on GaAs(100) and InP(100) surfaces. Physical Review Letters. 2008 Feb 25;100(8). 086101. https://doi.org/10.1103/PhysRevLett.100.086101
Laukkanen, P. ; Punkkinen, M. P J ; Komsa, H. P. ; Ahola-Tuomi, M. ; Kokko, K. ; Kuzmin, M. ; Adell, J. ; Sadowski, J. ; Perälä, R. E. ; Ropo, M. ; Rantala, T. T. ; Väyrynen, I. J. ; Pessa, M. ; Vitos, L. ; Kollár, J. ; Mirbt, S. ; Johansson, B. / Anomalous bismuth-stabilized (2×1) reconstructions on GaAs(100) and InP(100) surfaces. In: Physical Review Letters. 2008 ; Vol. 100, No. 8.
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