dc.identifier.uri |
http://dx.doi.org/10.15488/1907 |
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dc.identifier.uri |
http://www.repo.uni-hannover.de/handle/123456789/1932 |
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dc.contributor.author |
Ernst, Wolfgang
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dc.contributor.author |
Jonas, K.-L.
|
|
dc.contributor.author |
von Oeynhausen, V.
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|
dc.contributor.author |
Tegenkamp, Christoph
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|
dc.contributor.author |
Pfnür, Herbert
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dc.date.accessioned |
2017-09-14T10:52:23Z |
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dc.date.available |
2017-09-14T10:52:23Z |
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dc.date.issued |
2003 |
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dc.identifier.citation |
Ernst, W.; Jonas, K.-L.; Von Oeynhausen, V.; Tegenkamp, C.; Pfnür, H.: Restructuring of the Ge(100) surface by Na chains. In: Physical Review B - Condensed Matter and Materials Physics 68 (2003), Nr. 20, 205303. DOI: https://doi.org/10.1103/PhysRevB.68.205303 |
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dc.description.abstract |
The Na-induced surface structures on Ge(100) at concentrations below 0.1 monolayer (ML) have been investigated with low-energy electron diffraction and with scanning tunneling microscopy (STM). Annealing and partial desorption of higher coverages at temperatures between 650 and 680 K lead to the formation of characteristic chain structures, alternating between uncovered Ge dimer or double dimer rows and Na chains. The Na atoms have a preferential distance of three Ge lattice constants along the chains, but there is little correlation between different chains. Locally, only commensurate distances between Na chains of 4, 6 and 8 Ge lattice constants have been detected, with average distances being either commensurate or incommensurate, depending on the Na concentration. STM suggests complete removal of Ge-dimer rows below adsorbed Na chains. These alkali induced chainlike and well ordered self-organized modulations can be used as templates to impose these structures onto adsorbed ultra-thin insulating films. © 2003 The American Physical Society |
eng |
dc.description.sponsorship |
DFG |
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dc.language.iso |
eng |
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dc.publisher |
College Park, MD : American Physical Society |
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dc.relation.ispartofseries |
Physical Review B 68 (2003), Nr. 20 |
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dc.rights |
Es gilt deutsches Urheberrecht. Das Dokument darf zum eigenen Gebrauch kostenfrei genutzt, aber nicht im Internet bereitgestellt oder an Außenstehende weitergegeben werden. |
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dc.subject |
alkali |
eng |
dc.subject |
dimer |
eng |
dc.subject |
germanium |
eng |
dc.subject |
sodium |
eng |
dc.subject |
article |
eng |
dc.subject |
chemical structure |
eng |
dc.subject |
concentration response |
eng |
dc.subject |
desorption |
eng |
dc.subject |
electron diffraction |
eng |
dc.subject |
energy |
eng |
dc.subject |
modulation |
eng |
dc.subject |
scanning tunneling microscopy |
eng |
dc.subject |
surface property |
eng |
dc.subject |
temperature dependence |
eng |
dc.subject.ddc |
530 | Physik
|
ger |
dc.title |
Restructuring of the Ge(100) surface by Na chains |
eng |
dc.type |
Article |
|
dc.type |
Text |
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dc.relation.issn |
01631829 |
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dc.relation.doi |
https://doi.org/10.1103/PhysRevB.68.205303 |
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dc.bibliographicCitation.issue |
20 |
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dc.bibliographicCitation.volume |
68 |
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dc.bibliographicCitation.firstPage |
205303 |
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dc.description.version |
publishedVersion |
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tib.accessRights |
frei zug�nglich |
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