Energetics and dynamics of Pt dimers on Pt(110)-(1 x 2)

Authors
Linderoth, TR Horch, S Petersen, L Helveg, S Schonning, M Laegsgaard, E Stensgaard, I Besenbacher, F
Citation
Tr. Linderoth et al., Energetics and dynamics of Pt dimers on Pt(110)-(1 x 2), PHYS REV B, 61(4), 2000, pp. R2448-R2451
Citations number
14
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICAL REVIEW B
ISSN journal
10980121 → ACNP
Volume
61
Issue
4
Year of publication
2000
Pages
R2448 - R2451
Database
ISI
SICI code
1098-0121(20000115)61:4<R2448:EADOPD>2.0.ZU;2-P
Abstract
The stability and dynamics of Pt dimers on Pt(110)-(1 x 2) are studied usin g fast-scanning, variable-temperature STM. The kinetics of both dissociatio n and association of dimers have been quantified from a direct analysis of time-lapse STM movies. The extracted barriers are at variance with results from ab initio calculations, and we speculate that the discrepancies are du e to trace amounts of gas impurities such as CO.