Bromine adsorption on Ge(001) surface: comparative study for coverages of 0.25, 0.5, 0.75 and 1 monolayer

• Authors: PaweÅ‚ MikoÅ‚ajczyk , Barbara Stankiewicz
• Languages of publication: EN

Abstracts

EN

We present theoretical analysis of bromine adsorption on the Ge(001)-p(1Ã-2) surface. Bromine adsorbs dissociatively at the Ge(001) surface and the adlayer of bromine develops ordered structures of adatoms bound to substrate dimers. We analyse atomic configurations of the Ge(001) surface covered by 0.25, 0.5, 0.75 and 1 monolayer of bromine. Various stable surface structures, found in calculations, are presented and their energies are compared. Simulated STM images are also discussed for the considered configurations.

Keywords

EN

germanium; bromine; adsorption; surface relaxation and reconstruction; density functional calculations; STM images

Discipline

• 68.43.Bc: Ab initiocalculations of adsorbate structure and reactions(for electronic structure of adsorbates, see 73.20.Hb; for adsorbate reactions, see also 82.65.+r Surface and interface chemistry; heterogeneous catalysis at surfaces)
• 68.43.Fg: Adsorbate structure (binding sites, geometry)
• 68.37.Ef: Scanning tunneling microscopy (including chemistry induced with STM)

• Publisher: De Gruyter Open
• Journal: Open Physics
• Year: 2009
• Volume: 7
• Issue: 2
• Pages: 279-285

Dates

published

1 - 6 - 2009

online

26 - 4 - 2009

Contributors

author

Paweł Mikołajczyk

• Institute of Experimental Physics, University of WrocÅ‚aw, Pl. Maxa Borna 9, 50-204, WrocÅ‚aw, Poland

author

Barbara Stankiewicz

• Institute of Experimental Physics, University of WrocÅ‚aw, Pl. Maxa Borna 9, 50-204, WrocÅ‚aw, Poland

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Identifiers

DOI

10.2478/s11534-008-0142-x