Details
| Originalsprache | Englisch |
|---|---|
| Seiten (von - bis) | 6473-6483 |
| Seitenumfang | 11 |
| Fachzeitschrift | Journal of Physics Condensed Matter |
| Jahrgang | 15 |
| Ausgabenummer | 38 |
| Publikationsstatus | Veröffentlicht - 12 Sept. 2003 |
Abstract
The growth of thin NaCl layers at room temperature on a Ag(100) and a Ag(1, 1, 19) substrate has been investigated by LEED spot profile analysis, supplemented by EELS in order to clarify the electronic structure of the film. Our LEED analysis of NaCl/Ag(100) shows that the average orientation of the NaCl unit mesh is the same as that of the Ag substrate, but rotational mosaics are formed in the (100) plane. The angular distribution of rotational angles has a width of ±9° around the average direction. From this result we conclude that the direction of the substrate step edges determines the orientation of the NaCl islands. The steps of the vicinal silver surface are overgrown by elastic NaCl carpets. With increasing coverage, the modulation of the NaCl films by the step structure gets more and more washed out until, at around 10 ML, the whole film is only tilted by the nominal miscut of the sample. Closed films are only found at a thickness larger than 4 ML, as concluded from EELS.
ASJC Scopus Sachgebiete
- Werkstoffwissenschaften (insg.)
- Allgemeine Materialwissenschaften
- Physik und Astronomie (insg.)
- Physik der kondensierten Materie
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in: Journal of Physics Condensed Matter, Jahrgang 15, Nr. 38, 12.09.2003, S. 6473-6483.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - The growth of NaCl on flat and stepped silver surfaces
AU - Kramer, J.
AU - Tegenkamp, Christoph
AU - Pfnür, Herbert
PY - 2003/9/12
Y1 - 2003/9/12
N2 - The growth of thin NaCl layers at room temperature on a Ag(100) and a Ag(1, 1, 19) substrate has been investigated by LEED spot profile analysis, supplemented by EELS in order to clarify the electronic structure of the film. Our LEED analysis of NaCl/Ag(100) shows that the average orientation of the NaCl unit mesh is the same as that of the Ag substrate, but rotational mosaics are formed in the (100) plane. The angular distribution of rotational angles has a width of ±9° around the average direction. From this result we conclude that the direction of the substrate step edges determines the orientation of the NaCl islands. The steps of the vicinal silver surface are overgrown by elastic NaCl carpets. With increasing coverage, the modulation of the NaCl films by the step structure gets more and more washed out until, at around 10 ML, the whole film is only tilted by the nominal miscut of the sample. Closed films are only found at a thickness larger than 4 ML, as concluded from EELS.
AB - The growth of thin NaCl layers at room temperature on a Ag(100) and a Ag(1, 1, 19) substrate has been investigated by LEED spot profile analysis, supplemented by EELS in order to clarify the electronic structure of the film. Our LEED analysis of NaCl/Ag(100) shows that the average orientation of the NaCl unit mesh is the same as that of the Ag substrate, but rotational mosaics are formed in the (100) plane. The angular distribution of rotational angles has a width of ±9° around the average direction. From this result we conclude that the direction of the substrate step edges determines the orientation of the NaCl islands. The steps of the vicinal silver surface are overgrown by elastic NaCl carpets. With increasing coverage, the modulation of the NaCl films by the step structure gets more and more washed out until, at around 10 ML, the whole film is only tilted by the nominal miscut of the sample. Closed films are only found at a thickness larger than 4 ML, as concluded from EELS.
UR - http://www.scopus.com/inward/record.url?scp=0141938906&partnerID=8YFLogxK
U2 - 10.1088/0953-8984/15/38/015
DO - 10.1088/0953-8984/15/38/015
M3 - Article
AN - SCOPUS:0141938906
VL - 15
SP - 6473
EP - 6483
JO - Journal of Physics Condensed Matter
JF - Journal of Physics Condensed Matter
SN - 0953-8984
IS - 38
ER -