A comparative study of clean and Bi-stabilized InP(1 0 0)(2 × 4) surfaces by the core-level photoelectron spectroscopy

Pasi Laukkanen; M. Ahola-Tuomi; J. Adell; M. Adell; K. Schulte; M. Kuzmin; M.P.J. Punkkinen; Janne Pakarinen; A. Tukiainen; R.E. Perälä; I.J. Väyrynen; M. Pessa

doi:10.1016/j.susc.2007.06.013

A comparative study of clean and Bi-stabilized InP(1 0 0)(2 × 4) surfaces by the core-level photoelectron spectroscopy

Pasi Laukkanen^*
, M. Ahola-Tuomi
, J. Adell
, M. Adell
, K. Schulte
, M. Kuzmin
, M.P.J. Punkkinen
, Janne Pakarinen
, A. Tukiainen
, R.E. Perälä
, I.J. Väyrynen
, M. Pessa

^*Corresponding author for this work

Not published at VTT

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

3 Citations (Scopus)

Abstract

The bismuth-stabilized (2 × 4)-reconstructed InP(1 0 0) surface [Bi/InP(1 0 0)(2 × 4)] has been studied by synchrotron-radiation core-level photoelectron spectroscopy. The spectra are compared with previous core-level data obtained on a clean InP(1 0 0)(2 × 4) surface. The findings support that the P 2p surface-core-level shift (SCLS) of the clean InP(1 0 0)(2 × 4), which has higher kinetic energy than the bulk emission, arises from the third-layer P atoms and that the second P 2p SCLS, which has lower kinetic energy than the bulk, arises from the top-layer P atoms. Similar In 4d SCLSs are found on the clean and Bi-stabilized InP(1 0 0)(2 × 4) surfaces, indicating that these shifts contain contributions of the In atoms that lie in the second and/or fourth layers. In addition to this, the results improve our understanding of the atomic structure of the Bi/InP(1 0 0)(2 × 4) surface and lead to refined surface models which include Bi-Bi and Bi-P dimers.

Original language	English
Pages (from-to)	3395-3399
Journal	Surface Science
Volume	601
Issue number	16
DOIs	https://doi.org/10.1016/j.susc.2007.06.013
Publication status	Published - 15 Aug 2007
MoE publication type	A1 Journal article-refereed

Funding

Four of us would like to acknowledge financial support by the EC Access to Research Infrastructure Program (ARI).

Keywords

Indium phosphide (InP)
Single crystal surfaces
Surface reconstruction
Synchrotron radiation photoelectron spectroscopy

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10.1016/j.susc.2007.06.013

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Laukkanen, P., Ahola-Tuomi, M., Adell, J., Adell, M., Schulte, K., Kuzmin, M., Punkkinen, M. P. J., Pakarinen, J., Tukiainen, A., Perälä, R. E., Väyrynen, I. J., & Pessa, M. (2007). A comparative study of clean and Bi-stabilized InP(1 0 0)(2 × 4) surfaces by the core-level photoelectron spectroscopy. Surface Science, 601(16), 3395-3399. https://doi.org/10.1016/j.susc.2007.06.013

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title = "A comparative study of clean and Bi-stabilized InP(1 0 0)(2 × 4) surfaces by the core-level photoelectron spectroscopy",

abstract = "The bismuth-stabilized (2 × 4)-reconstructed InP(1 0 0) surface [Bi/InP(1 0 0)(2 × 4)] has been studied by synchrotron-radiation core-level photoelectron spectroscopy. The spectra are compared with previous core-level data obtained on a clean InP(1 0 0)(2 × 4) surface. The findings support that the P 2p surface-core-level shift (SCLS) of the clean InP(1 0 0)(2 × 4), which has higher kinetic energy than the bulk emission, arises from the third-layer P atoms and that the second P 2p SCLS, which has lower kinetic energy than the bulk, arises from the top-layer P atoms. Similar In 4d SCLSs are found on the clean and Bi-stabilized InP(1 0 0)(2 × 4) surfaces, indicating that these shifts contain contributions of the In atoms that lie in the second and/or fourth layers. In addition to this, the results improve our understanding of the atomic structure of the Bi/InP(1 0 0)(2 × 4) surface and lead to refined surface models which include Bi-Bi and Bi-P dimers.",

keywords = "Indium phosphide (InP), Single crystal surfaces, Surface reconstruction, Synchrotron radiation photoelectron spectroscopy",

author = "Pasi Laukkanen and M. Ahola-Tuomi and J. Adell and M. Adell and K. Schulte and M. Kuzmin and M.P.J. Punkkinen and Janne Pakarinen and A. Tukiainen and R.E. Per{\"a}l{\"a} and I.J. V{\"a}yrynen and M. Pessa",

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doi = "10.1016/j.susc.2007.06.013",

language = "English",

volume = "601",

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Laukkanen, P, Ahola-Tuomi, M, Adell, J, Adell, M, Schulte, K, Kuzmin, M, Punkkinen, MPJ, Pakarinen, J, Tukiainen, A, Perälä, RE, Väyrynen, IJ & Pessa, M 2007, 'A comparative study of clean and Bi-stabilized InP(1 0 0)(2 × 4) surfaces by the core-level photoelectron spectroscopy', Surface Science, vol. 601, no. 16, pp. 3395-3399. https://doi.org/10.1016/j.susc.2007.06.013

TY - JOUR

T1 - A comparative study of clean and Bi-stabilized InP(1 0 0)(2 × 4) surfaces by the core-level photoelectron spectroscopy

AU - Laukkanen, Pasi

AU - Ahola-Tuomi, M.

AU - Adell, J.

AU - Adell, M.

AU - Schulte, K.

AU - Kuzmin, M.

AU - Punkkinen, M.P.J.

AU - Pakarinen, Janne

AU - Tukiainen, A.

AU - Perälä, R.E.

AU - Väyrynen, I.J.

AU - Pessa, M.

PY - 2007/8/15

Y1 - 2007/8/15

N2 - The bismuth-stabilized (2 × 4)-reconstructed InP(1 0 0) surface [Bi/InP(1 0 0)(2 × 4)] has been studied by synchrotron-radiation core-level photoelectron spectroscopy. The spectra are compared with previous core-level data obtained on a clean InP(1 0 0)(2 × 4) surface. The findings support that the P 2p surface-core-level shift (SCLS) of the clean InP(1 0 0)(2 × 4), which has higher kinetic energy than the bulk emission, arises from the third-layer P atoms and that the second P 2p SCLS, which has lower kinetic energy than the bulk, arises from the top-layer P atoms. Similar In 4d SCLSs are found on the clean and Bi-stabilized InP(1 0 0)(2 × 4) surfaces, indicating that these shifts contain contributions of the In atoms that lie in the second and/or fourth layers. In addition to this, the results improve our understanding of the atomic structure of the Bi/InP(1 0 0)(2 × 4) surface and lead to refined surface models which include Bi-Bi and Bi-P dimers.

AB - The bismuth-stabilized (2 × 4)-reconstructed InP(1 0 0) surface [Bi/InP(1 0 0)(2 × 4)] has been studied by synchrotron-radiation core-level photoelectron spectroscopy. The spectra are compared with previous core-level data obtained on a clean InP(1 0 0)(2 × 4) surface. The findings support that the P 2p surface-core-level shift (SCLS) of the clean InP(1 0 0)(2 × 4), which has higher kinetic energy than the bulk emission, arises from the third-layer P atoms and that the second P 2p SCLS, which has lower kinetic energy than the bulk, arises from the top-layer P atoms. Similar In 4d SCLSs are found on the clean and Bi-stabilized InP(1 0 0)(2 × 4) surfaces, indicating that these shifts contain contributions of the In atoms that lie in the second and/or fourth layers. In addition to this, the results improve our understanding of the atomic structure of the Bi/InP(1 0 0)(2 × 4) surface and lead to refined surface models which include Bi-Bi and Bi-P dimers.

KW - Indium phosphide (InP)

KW - Single crystal surfaces

KW - Surface reconstruction

KW - Synchrotron radiation photoelectron spectroscopy

UR - https://www.scopus.com/pages/publications/34547672731

U2 - 10.1016/j.susc.2007.06.013

DO - 10.1016/j.susc.2007.06.013

M3 - Article

AN - SCOPUS:34547672731

SN - 0039-6028

VL - 601

SP - 3395

EP - 3399

JO - Surface Science

JF - Surface Science

IS - 16

ER -

A comparative study of clean and Bi-stabilized InP(1 0 0)(2 × 4) surfaces by the core-level photoelectron spectroscopy

Abstract

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Keywords

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