(WFRF:(Balasubramanian I)) srt2:(2010-2014)
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Surface core-level shifts on Ge(111)c(2 x 8) : Experiment and theory
- Kuzmin, M. (author)
- Punkkinen, M. J. P. (author)
- Laukkanen, P. (author)
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- Lang, J. J. K. (author)
- Dahl, J. (author)
- Tuominen, V. (author)
- Tuominen, M. (author)
- Perala, R. E. (author)
- Kokko, K. (author)
- Vayrynen, I. J. (author)
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- (creator_code:org_t)
- 2011
- 2011
- English.
- In: Physical Review B. Condensed Matter and Materials Physics. - 1098-0121 .- 1550-235X. ; 83:24, s. 245319-
- Journal article (peer-reviewed)
Abstract
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- Combining high-resolution photoelectron spectroscopy and density functional theory (DFT) calculations, 3d photoemission line shape and surface core-level shifts have been reinvestigated on the Ge(111)c(2 x 8) surface. It is found that 3d spectra include, in addition to the bulk and three surface-shifted components reported in literature, a component that was not identified in earlier measurements with a lower resolution. The detailed interpretation of these spectra and their line shape is made on the basis of DFT calculations. It is shown that the lowest binding energy component is due to the rest atoms. The higher binding energy emission is caused by the adatoms and the third-layer atoms that are below the adatoms. Finally, the two other surface components originate from the first- and second-layer atoms. The screening effects in the Ge(111)c(2 x 8) are discussed.
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
- INITIO MOLECULAR-DYNAMICS
- TOTAL-ENERGY CALCULATIONS
- AUGMENTED-WAVE METHOD
- BASIS-SET
- PHOTOEMISSION
- GE(111)-C(2X8)
- RECONSTRUCTION
- SPECTROSCOPY
- DIFFRACTION
- TRANSITION
- Condensed matter physics
- Kondenserade materiens fysik
- NATURAL SCIENCES
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- Kuzmin, M.
- Punkkinen, M. J. ...
- Laukkanen, P.
- Lang, J. J. K.
- Dahl, J.
- Tuominen, V.
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- Tuominen, M.
- Perala, R. E.
- Thiagarajan, Bal ...
- Adell, Johan
- Johansson, Börje
- Vitos, Levente
- Kokko, K.
- Vayrynen, I. J.
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