Anomalous bismuth-stabilized (2x1) reconstructions on GaAs(100) and InP(100) surfaces

P Laukkanen; M P J Punkkinen; H-P Komsa; M Ahola-Tuomi; K Kokko; M Kuzmin; Johan Adell; Janusz Sadowski; R E Perala; M Ropo; T T Rantala; I J Vayrynen; M Pessa; L Vitos; J Kollar; S Mirbt; B Johansson

doi:10.1103/PhysRevLett.100.086101

Anomalous bismuth-stabilized (2x1) reconstructions on GaAs(100) and InP(100) surfaces

P Laukkanen, M P J Punkkinen, H-P Komsa, M Ahola-Tuomi, K Kokko, M Kuzmin, Johan Adell, Janusz Sadowski, R E Perala, M Ropo, T T Rantala, I J Vayrynen, M Pessa, L Vitos, J Kollar, S Mirbt, B Johansson

MAX IV Laboratory

Research output: Contribution to journal › Article › peer-review

Abstract

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.

Original language	English
Article number	086101
Journal	Physical Review Letters
Volume	100
Issue number	8
DOIs	https://doi.org/10.1103/PhysRevLett.100.086101
Publication status	Published - 2008

Subject classification (UKÄ)

Physical Sciences
Natural Sciences

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10.1103/PhysRevLett.100.086101

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Laukkanen, P., Punkkinen, M. P. J., Komsa, H.-P., Ahola-Tuomi, M., Kokko, K., Kuzmin, M., Adell, J., Sadowski, J., Perala, R. E., Ropo, M., Rantala, T. T., Vayrynen, I. J., Pessa, M., Vitos, L., Kollar, J., Mirbt, S., & Johansson, B. (2008). Anomalous bismuth-stabilized (2x1) reconstructions on GaAs(100) and InP(100) surfaces. Physical Review Letters, 100(8), Article 086101. https://doi.org/10.1103/PhysRevLett.100.086101

@article{f03c33f3b21045a5a3f6f7c88cfb65c8,

title = "Anomalous bismuth-stabilized (2x1) reconstructions on GaAs(100) and InP(100) surfaces",

abstract = "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.",

author = "P Laukkanen and Punkkinen, {M P J} and H-P Komsa and M Ahola-Tuomi and K Kokko and M Kuzmin and Johan Adell and Janusz Sadowski and Perala, {R E} and M Ropo and Rantala, {T T} and Vayrynen, {I J} and M Pessa and L Vitos and J Kollar and S Mirbt and B Johansson",

year = "2008",

doi = "10.1103/PhysRevLett.100.086101",

language = "English",

volume = "100",

journal = "Physical Review Letters",

issn = "1079-7114",

publisher = "American Physical Society",

number = "8",

}

Laukkanen, P, Punkkinen, MPJ, Komsa, H-P, Ahola-Tuomi, M, Kokko, K, Kuzmin, M, Adell, J, Sadowski, J, Perala, RE, Ropo, M, Rantala, TT, Vayrynen, IJ, Pessa, M, Vitos, L, Kollar, J, Mirbt, S & Johansson, B 2008, 'Anomalous bismuth-stabilized (2x1) reconstructions on GaAs(100) and InP(100) surfaces', Physical Review Letters, vol. 100, no. 8, 086101. https://doi.org/10.1103/PhysRevLett.100.086101

TY - JOUR

T1 - Anomalous bismuth-stabilized (2x1) reconstructions on GaAs(100) and InP(100) surfaces

AU - Laukkanen, P

AU - Punkkinen, M P J

AU - Komsa, H-P

AU - Ahola-Tuomi, M

AU - Kokko, K

AU - Kuzmin, M

AU - Adell, Johan

AU - Sadowski, Janusz

AU - Perala, R E

AU - Ropo, M

AU - Rantala, T T

AU - Vayrynen, I J

AU - Pessa, M

AU - Vitos, L

AU - Kollar, J

AU - Mirbt, S

AU - Johansson, B

PY - 2008

Y1 - 2008

N2 - 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.

AB - 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.

U2 - 10.1103/PhysRevLett.100.086101

DO - 10.1103/PhysRevLett.100.086101

M3 - Article

SN - 1079-7114

VL - 100

JO - Physical Review Letters

JF - Physical Review Letters

IS - 8

M1 - 086101

ER -

Anomalous bismuth-stabilized (2x1) reconstructions on GaAs(100) and InP(100) surfaces

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