Thermal stability of the Rh(110) missing-row reconstruction: Combination of real-time core-level spectroscopy and ab initio modeling

Summary, in English

The thermal stability of the (1×2) missing-row phase of Rh(110), whose first layer is an ordered array of one-dimensional atomic chains, is investigated using high-resolution core-level spectroscopy and density functional calculations. The time evolution of the spectra indicates that this phase is metastable towards deconstruction into a (1×1) phase. Our calculations unveil the mechanism of this process, which is shown to be ignited by surface defects, and provide a value for the activation energy in good agreement with experimental findings.

• Författare: A. Baraldi; S. Lizzit; F. Bondino; G. Comelli; R. Rosei; C. Sbraccia; N. Bonni; S. Baroni; Anders Mikkelsen; Jesper N Andersen
• Avdelning/ar: Synkrotronljusfysik
• Publiceringsår: 2005
• Språk: Engelska
• Publikation/Tidskrift/Serie: Physical Review B. Condensed Matter and Materials Physics
• Volym: 72
• Länkar: http://dx.doi.org/10.1103/PhysRevB.72.075417
• Dokumenttyp: Artikel i tidskrift
• Förlag: American Physical Society
• Ämne: Atom and Molecular Physics and Optics
• Status: Published