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          Institute: Fritz-Haber-Institut     Collection: Physical Chemistry     Display Documents



ID: 289217.0, Fritz-Haber-Institut / Physical Chemistry
Structural investigation of the Rh(110)-c(2x2)-CN phase
Authors:Bondino, Federica; Baraldi, Alessandro; Over, Herbert; Comelli, Giovanni; Lacovig, Paolo; Lizzit, Silvano; Paolucci, Giorgio; Rosei, Renzo
Language:English
Date of Publication (YYYY-MM-DD):2001-08-15
Title of Journal:Physical Review B
Journal Abbrev.:Phys. Rev. B
Volume:64
Issue / Number:8
Start Page:085422-1
End Page:085422-5
Copyright:© 2001 The American Physical Society
Review Status:Peer-review
Audience:Experts Only
Abstract / Description:The Rh(110)-c(2x2)-CN phase has been examined by means of scanning tunneling microscopy (STM) and full dynamical low-energy electron diffraction (LEED). From STM large c(2x2) domains are observed. The detailed LEED-IV structural analysis indicates that CN is located in the grooves of the (110) surface, approximately atop second layer rhodium atoms. The CN molecules lie almost flat with their bond axes oriented perpendicular to the rhodium troughs. An outward relaxation of the first substrate interlayer distance and a strong buckling of the second Rh layer are induced by CN adsorption. Calculated and experimental intensity curves are in good agreement. An exhaustive set of other possible adsorption sites and configurations was tested and excluded on the basis of reliability-factor analysis.
Free Keywords:Energy-Electron-Diffraction; Metal-Surfaces; CN; Leed; Adsorption; Pd(110); Spectroscopy; Reduction; Cyanogen; Rh(110)
External Publication Status:published
Document Type:Article
Communicated by:Gerhard Ertl
Affiliations:Fritz-Haber-Institut/Physical Chemistry
External Affiliations:Bondino F (reprint author), Univ Trieste, Dipartimento Fis, Trieste, I-34127 Italy;
Ext. Aff.: Bondino F, Baraldi A, Comelli G, Rosei R, Univ Trieste, Dipartimento Fis, Trieste, I-34127 Italy and INFM, Lab TASC, Trieste, I-34012 Italy;
Baraldi A, Lacovig P, Lizzit S, Paolucci G, Sincrotrone Trieste SCpA, Trieste, I-34012 Italy
Identifiers:URL:http://link.aps.org/abstract/PRB/v64/e085422
DOI:10.1103/PhysRevB.64.085422
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