Details
| Original language | English |
|---|---|
| Pages (from-to) | 549-554 |
| Number of pages | 6 |
| Journal | Chemical physics letters |
| Volume | 318 |
| Issue number | 6 |
| Publication status | Published - 3 Mar 2000 |
Abstract
Low-energy electron microscopy (LEEM) and micro-LEED (micro low-energy electron diffraction, beam diameter 1 μm) have been employed to resolve the structural changes which occur during chemical wave propagation in the system Rh(110)/NO+H2. In a pulse the surface undergoes cyclic structural transformations in the sequence c(2×6)-O, (3×1)-N, (2×1)-N, c(2×4)-2O,N, c(2×6)-O. In situ dark field imaging with superstructure beams was used to demonstrate the contribution of the various reconstruction phases to pulse propagation. Based on the LEED/LEEM results, an excitation mechanism is proposed.
ASJC Scopus subject areas
- Physics and Astronomy(all)
- General Physics and Astronomy
- Chemistry(all)
- Physical and Theoretical Chemistry
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In: Chemical physics letters, Vol. 318, No. 6, 03.03.2000, p. 549-554.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - In situ imaging of structural changes in a chemical wave with low-energy electron microscopy
T2 - The system Rh(110)/NO+H2
AU - Schmidt, Th
AU - Schaak, A.
AU - Günther, S.
AU - Ressel, B.
AU - Bauer, E.
AU - Imbihl, R.
N1 - Funding Information: This work was financially supported by an EC grant under Contract No. EBRCH-GECT920013 and by Sincrotrone Trieste SCpA.
PY - 2000/3/3
Y1 - 2000/3/3
N2 - Low-energy electron microscopy (LEEM) and micro-LEED (micro low-energy electron diffraction, beam diameter 1 μm) have been employed to resolve the structural changes which occur during chemical wave propagation in the system Rh(110)/NO+H2. In a pulse the surface undergoes cyclic structural transformations in the sequence c(2×6)-O, (3×1)-N, (2×1)-N, c(2×4)-2O,N, c(2×6)-O. In situ dark field imaging with superstructure beams was used to demonstrate the contribution of the various reconstruction phases to pulse propagation. Based on the LEED/LEEM results, an excitation mechanism is proposed.
AB - Low-energy electron microscopy (LEEM) and micro-LEED (micro low-energy electron diffraction, beam diameter 1 μm) have been employed to resolve the structural changes which occur during chemical wave propagation in the system Rh(110)/NO+H2. In a pulse the surface undergoes cyclic structural transformations in the sequence c(2×6)-O, (3×1)-N, (2×1)-N, c(2×4)-2O,N, c(2×6)-O. In situ dark field imaging with superstructure beams was used to demonstrate the contribution of the various reconstruction phases to pulse propagation. Based on the LEED/LEEM results, an excitation mechanism is proposed.
UR - http://www.scopus.com/inward/record.url?scp=0000299983&partnerID=8YFLogxK
U2 - 10.1016/S0009-2614(00)00061-0
DO - 10.1016/S0009-2614(00)00061-0
M3 - Article
AN - SCOPUS:0000299983
VL - 318
SP - 549
EP - 554
JO - Chemical physics letters
JF - Chemical physics letters
SN - 0009-2614
IS - 6
ER -