dc.identifier.uri |
http://dx.doi.org/10.15488/2794 |
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dc.identifier.uri |
http://www.repo.uni-hannover.de/handle/123456789/2820 |
|
dc.contributor.author |
Sokolowski, M.
|
|
dc.contributor.author |
Pfnür, Herbert
|
|
dc.date.accessioned |
2018-02-19T14:57:17Z |
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dc.date.available |
2018-02-19T14:57:17Z |
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dc.date.issued |
1995 |
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dc.identifier.citation |
Sokolowski, M.; Pfnür, H.: Phase transitions of the striped domain-wall phases of S on Ru(0001). In: Physical Review B 51 (1995), Nr. 22, S. 15742-15751. DOI: https://doi.org/10.1103/PhysRevB.51.15742 |
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dc.description.abstract |
Atomic sulfur chemisorbed on Ru(0001) forms a striped network of domain walls (DW's) at coverages above completion of a commensurate (3 × 3) R30°structure (θ>0.333). At high coverages (θ=0.48), this DW network transforms into a homogeneous commensurate c(2×4) structure with an ideal coverage θ=0.50. The temperature-induced phase transitions of the domain walls and the c(2×4) structures were investigated to low-energy electron diffraction spot profile analysis and compared to theoretical predictions. The phase transition of the superheavy walls, formed a low wall concentrations (coverages θ between 0.35 and 0.43), to the disordered lattice gas is found to be continuous, and compatible with a Kosterlitz-Thouless transition expected from theory. At higher coverages light DW's are formed (0.43<θ<0.48), which undergo a first-order transition, as evident from an intervening two-phase region formed by the DW phase and the incommensurate phase. Short-range order correlations are maintained in the disordered phase, which is best described by an incommensurate phase with strong disorder. Again a first-order transition is found for the commensurate c(2×4) structure, which also disorders into a short-range ordered incommensurate phase. Influences by finite-size effects are clearly visible. © 1995 The American Physical Society. |
eng |
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 51 (1995), Nr. 22 |
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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 |
phase transition |
eng |
dc.subject |
chemisorption |
eng |
dc.subject |
domain walls |
eng |
dc.subject.ddc |
530 | Physik
|
ger |
dc.title |
Phase transitions of the striped domain-wall phases of S on Ru(0001) |
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.51.15742 |
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dc.bibliographicCitation.issue |
22 |
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dc.bibliographicCitation.volume |
51 |
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dc.bibliographicCitation.firstPage |
15742 |
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dc.bibliographicCitation.lastPage |
15751 |
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dc.description.version |
publishedVersion |
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tib.accessRights |
frei zug�nglich |
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