Details
| Originalsprache | Englisch |
|---|---|
| Seiten (von - bis) | 163-169 |
| Seitenumfang | 7 |
| Fachzeitschrift | Surface science |
| Jahrgang | 548 |
| Ausgabenummer | 1-3 |
| Frühes Online-Datum | 18 Nov. 2003 |
| Publikationsstatus | Veröffentlicht - 1 Jan. 2004 |
Abstract
A thin Pt(1 0 0) single crystal was bent across a wedge in a reacting NO, CO atmosphere at 10-5 mbar employing photoelectron emission microscopy (PEEM) as spatially resolving method. To visualize surface topographical changes during this plastic deformation chemical wave patterns in the NO+CO reaction were imaged with PEEM. Scanning electron microscopy (SEM) of the bent crystal was used to correlate changes in the wave patterns with topographical features. We observed a change in the apparent anisotropy of the surface, the development of spiral waves pinned to structural defects, and a breakup of the reacting surface into isolated domains of pattern formation.
ASJC Scopus Sachgebiete
- Physik und Astronomie (insg.)
- Physik der kondensierten Materie
- Physik und Astronomie (insg.)
- Oberflächen und Grenzflächen
- Werkstoffwissenschaften (insg.)
- Oberflächen, Beschichtungen und Folien
- Werkstoffwissenschaften (insg.)
- Werkstoffchemie
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in: Surface science, Jahrgang 548, Nr. 1-3, 01.01.2004, S. 163-169.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - Imaging surface topographical changes during plastic deformation of a metal with chemical wave patterns
AU - Hartmann, N.
AU - Schaak, A.
AU - Shaikhutdinov, S.
AU - Imbihl, R.
PY - 2004/1/1
Y1 - 2004/1/1
N2 - A thin Pt(1 0 0) single crystal was bent across a wedge in a reacting NO, CO atmosphere at 10-5 mbar employing photoelectron emission microscopy (PEEM) as spatially resolving method. To visualize surface topographical changes during this plastic deformation chemical wave patterns in the NO+CO reaction were imaged with PEEM. Scanning electron microscopy (SEM) of the bent crystal was used to correlate changes in the wave patterns with topographical features. We observed a change in the apparent anisotropy of the surface, the development of spiral waves pinned to structural defects, and a breakup of the reacting surface into isolated domains of pattern formation.
AB - A thin Pt(1 0 0) single crystal was bent across a wedge in a reacting NO, CO atmosphere at 10-5 mbar employing photoelectron emission microscopy (PEEM) as spatially resolving method. To visualize surface topographical changes during this plastic deformation chemical wave patterns in the NO+CO reaction were imaged with PEEM. Scanning electron microscopy (SEM) of the bent crystal was used to correlate changes in the wave patterns with topographical features. We observed a change in the apparent anisotropy of the surface, the development of spiral waves pinned to structural defects, and a breakup of the reacting surface into isolated domains of pattern formation.
KW - Carbon monoxide
KW - Metallic surfaces
KW - Nitrogen oxides
KW - Photoelectron spectroscopy
KW - Platinum
KW - Single crystal surfaces
KW - Surface chemical reaction
KW - Surface stress
KW - Surface structure, morphology, roughness, and topography
UR - http://www.scopus.com/inward/record.url?scp=0346780752&partnerID=8YFLogxK
U2 - 10.1016/j.susc.2003.10.050
DO - 10.1016/j.susc.2003.10.050
M3 - Article
AN - SCOPUS:0346780752
VL - 548
SP - 163
EP - 169
JO - Surface science
JF - Surface science
SN - 0039-6028
IS - 1-3
ER -