Title of article
Ab initio simulations and STM-images for Co/Pt(1 1 0) surfaces
Author/Authors
Mلca، نويسنده , , F. and Hofer، نويسنده , , W.A. and Redinger، نويسنده , , J.، نويسنده ,
Issue Information
هفته نامه با شماره پیاپی سال 2001
Pages
6
From page
844
To page
849
Abstract
We present results, obtained by first principles density functional calculations, simulating scanning tunneling microscopy (STM) images for 1.5 monolayer of Co deposited on a p(1×2) Pt(1 1 0) surface. Two different surface structures are investigated theoretically: a CoPt/Pt(1 1 0) film covered by a Co monolayer, and Co/Pt(1 1 0) covered by an ordered CoPt layer. The surface geometry has been fully relaxed minimizing forces on ions. Covering with a cobalt monolayer reveals a tendency to form double-rows, the CoPt covered film features surface rumpling. STM scans were simulated using perturbation theory, the influence of different tip compositions is analyzed. The results obtained are in reasonable agreement with experimental findings.
Keywords
Density functional calculations , Scanning tunneling microscopy , Cobalt , Platinum , Surface relaxation and reconstruction
Journal title
Surface Science
Serial Year
2001
Journal title
Surface Science
Record number
1690182
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