Sökning: (WFRF:(Punkkinen Marko Patrick John)) srt2:(2013)
> (2013) >
Photoemission and d...
Photoemission and density functional theory study of Ge(100) : Clean surface and Yb-induced (2x4) reconstruction
-
Kuzmin, M. (författare)
-
- Punkkinen, Marko Patrick John (författare)
- KTH,Tillämpad materialfysik
-
Laukkanen, P. (författare)
-
visa fler...
-
Perälä, R. E. (författare)
-
Lang, J. J. K. (författare)
-
Dahl, J. (författare)
-
- Adell, Johan (författare)
- Lund University,Lunds universitet,MAX IV-laboratoriet,MAX IV Laboratory
-
Kokko, K. (författare)
-
visa färre...
-
(creator_code:org_t)
- Elsevier, 2013
- 2013
- Engelska.
-
Ingår i: Surface Science. - : Elsevier. - 0039-6028 .- 1879-2758. ; 615, s. 88-96
- Relaterad länk:
-
http://dx.doi.org/10...
-
visa fler...
-
https://urn.kb.se/re...
-
https://doi.org/10.1...
-
https://lup.lub.lu.s...
-
visa färre...
Abstract
Ämnesord
Stäng
- Clean and metal-adsorbed (100) surfaces of group-IV semiconductors, such as Si and Ge, often exhibit electronically and structurally similar reconstructions. However, the fundamental bulk properties of group-IV materials can have an impact on particular features of such systems, which are related, e.g., to final-state relaxation in photoemission and thus determine their spectral line shape. Here we have studied Yb/Ge(100)(2 x 4) reconstruction as well as clean Ge(100) surface by high-resolution photoelectron spectroscopy and ab initio calculations. An atomic geometry of both surfaces is thoroughly investigated. A detailed analysis of Ge 3d core-level photoemission, atomic origins of surface-shifted components, and final-state screening effects is presented. In particular, it is demonstrated that the core-hole screening plays an essential role in Ge 3d measurements, and that its amount in the complete screening model correlates well with the core-level binding energy of respective Ge atoms in the initial state. The results are discussed in the proper context of related reconstructions on Si(100).
Ämnesord
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
- NATURVETENSKAP -- Kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences (hsv//eng)
Nyckelord
- Germanium
- Ytterbium
- Photoelectron spectroscopy
- DFT calculation
- Atomic structure
- Surface core-level shift
- Germanium
- Ytterbium
- Photoelectron spectroscopy
- DFT calculation
- Atomic structure
- Surface core-level shift
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
Hitta via bibliotek
Till lärosätets databas