We present a detailed investigation of the (formula presented) adlayer structure supplemented by the analysis of the (formula presented) missing-row (MR) structure of the clean Pt(110) surface. Quantitative low energy electron diffraction analyses and first-principles calculations are in impressive agreement in both cases. The clean surface reconstruction is determined with unprecedented accuracy. For the adsorbate, the analysis retrieves a simple Br-adlayer structure with the Br atoms residing in every second short bridge position on the close-packed Pt rows with the MR reconstruction lifted. The Br-Pt bond length (formula presented) is almost equal to the sum of the atomic radii. The substrate below the adsorbate exhibits a contraction of the first layer spacing which amounts to half of that calculated for an unreconstructed clean surface. © 2002 The American Physical Society.
Blum V., Hammer L., Heinz K., Franchini C., Redinger J., Swamy K., et al. (2002). Structure of the (formula presented)-Br/Pt(110) surface. PHYSICAL REVIEW. B, CONDENSED MATTER AND MATERIALS PHYSICS, 65(16), 1-13 [10.1103/PhysRevB.65.165408].
Structure of the (formula presented)-Br/Pt(110) surface
Franchini C.Methodology
;
2002
Abstract
We present a detailed investigation of the (formula presented) adlayer structure supplemented by the analysis of the (formula presented) missing-row (MR) structure of the clean Pt(110) surface. Quantitative low energy electron diffraction analyses and first-principles calculations are in impressive agreement in both cases. The clean surface reconstruction is determined with unprecedented accuracy. For the adsorbate, the analysis retrieves a simple Br-adlayer structure with the Br atoms residing in every second short bridge position on the close-packed Pt rows with the MR reconstruction lifted. The Br-Pt bond length (formula presented) is almost equal to the sum of the atomic radii. The substrate below the adsorbate exhibits a contraction of the first layer spacing which amounts to half of that calculated for an unreconstructed clean surface. © 2002 The American Physical Society.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
