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A comparative study of clean and Bi-stabilized InP(100)(2 x 4) surfaces by the core-level photoelectron spectroscopy

Laukkanen, P.; Ahola-Tuomi, M.; Adell, Johan LU ; Adell, Martin LU ; Schulte, K.; Kuzmin, M.; Punkkinen, M. P. J.; Pakarinen, J.; Tukiainen, A. and Perala, R. E., et al. (2007) In Surface Science 601(16). p.3395-3399
Abstract
The bismuth-stabilized (2 x 4)-reconstructed InP(100) surface [Bi/InP(100)(2 x 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(100)(2 x 4) surface. The findings support that the P 2p surface-core-level shift (SCLS) of the clean InP(100)(2 x 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(100)(2 x 4) surfaces, indicating that these shifts contain contributions of the In atoms that lie in the second and/or... (More)
The bismuth-stabilized (2 x 4)-reconstructed InP(100) surface [Bi/InP(100)(2 x 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(100)(2 x 4) surface. The findings support that the P 2p surface-core-level shift (SCLS) of the clean InP(100)(2 x 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(100)(2 x 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(100)(2 x 4) surface and lead to refined surface models which include Bi-Bi and Bi-P dimers. (C) 2007 Elsevier B.V. All rights reserved. (Less)
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published
subject
keywords
synchrotron radiation photoelectron spectroscopy, (InP), indium phosphide, single crystal surfaces, surface reconstruction
in
Surface Science
volume
601
issue
16
pages
3395 - 3399
publisher
Elsevier
external identifiers
  • wos:000249282600015
  • scopus:34547672731
ISSN
0039-6028
DOI
10.1016/j.susc.2007.06.013
language
English
LU publication?
yes
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5c82801f-4b30-4718-92dd-f9aef1823bde (old id 688580)
date added to LUP
2007-12-12 13:19:08
date last changed
2017-01-01 06:44:48
@article{5c82801f-4b30-4718-92dd-f9aef1823bde,
  abstract     = {The bismuth-stabilized (2 x 4)-reconstructed InP(100) surface [Bi/InP(100)(2 x 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(100)(2 x 4) surface. The findings support that the P 2p surface-core-level shift (SCLS) of the clean InP(100)(2 x 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(100)(2 x 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(100)(2 x 4) surface and lead to refined surface models which include Bi-Bi and Bi-P dimers. (C) 2007 Elsevier B.V. All rights reserved.},
  author       = {Laukkanen, P. and Ahola-Tuomi, M. and Adell, Johan and Adell, Martin and Schulte, K. and Kuzmin, M. and Punkkinen, M. P. J. and Pakarinen, J. and Tukiainen, A. and Perala, R. E. and Vayrynen, I. J. and Pessa, M.},
  issn         = {0039-6028},
  keyword      = {synchrotron radiation photoelectron spectroscopy,(InP),indium phosphide,single crystal surfaces,surface reconstruction},
  language     = {eng},
  number       = {16},
  pages        = {3395--3399},
  publisher    = {Elsevier},
  series       = {Surface Science},
  title        = {A comparative study of clean and Bi-stabilized InP(100)(2 x 4) surfaces by the core-level photoelectron spectroscopy},
  url          = {http://dx.doi.org/10.1016/j.susc.2007.06.013},
  volume       = {601},
  year         = {2007},
}