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  Two-dimensional roughening of adsorbate islands in thermodynamic equilibrium

Wintterlin, J., Trost, J., Schuster, R., Eichler, A., & McEwen, J.-S. (2006). Two-dimensional roughening of adsorbate islands in thermodynamic equilibrium. Physical Review Letters, 96(16), 166102–1-166102–4. doi:10.1103/PhysRevLett.96.166102.

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Item Permalink: https://hdl.handle.net/11858/00-001M-0000-0011-04B3-4 Version Permalink: https://hdl.handle.net/11858/00-001M-0000-0011-04B3-4
Genre: Journal Article

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e166102.pdf (Any fulltext), 304KB
 
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Wintterlin, Joost1, Author           
Trost, Johannes1, Author           
Schuster, Rolf1, Author           
Eichler, Andreas, Author
McEwen, Jean-Sabin, Author
Affiliations:
1Physical Chemistry, Fritz Haber Institute, Max Planck Society, ou_634546              

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Free keywords: scanning tunnelling microscopy; adsorbed layers; island structure; fluctuations; oxygen; ruthenium; density functional theory; Monte Carlo methods; surface reconstruction; 3-body interactions; phase-diagram; O/Ru(0001); W(110); adsorption; system; layers; pair
 Abstract: Equilibrium fluctuations of islands of adsorbed O atoms on Ru(0001) were investigated by scanning tunneling microscopy (STM), density functional theory calculations (DFT) and Monte Carlo (MC) simulations. Very ramified (2x2)-O islands were observed by high-speed STM that point to complex interactions between the O atoms. The DFT calculations show that, in addition to pairwise attractive interactions between third-nearest neighbors, a repulsive three-body interaction exists between these. MC simulations that include three-body interactions reproduce the observed ordering behavior.

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Language(s): eng - English
 Dates: 2006-04-28
 Publication Status: Issued
 Pages: -
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 Table of Contents: -
 Rev. Type: Peer
 Identifiers: eDoc: 291659
URI: http://link.aps.org/abstract/PRL/v96/e166102
URI: http://scitation.aip.org/getpdf/servlet/GetPDFServlet?filetype=pdf&id=PRLTAO000096000016166102000001&idtype=cvips&prog=normal
DOI: 10.1103/PhysRevLett.96.166102
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Title: Physical Review Letters
  Alternative Title : Phys. Rev. Lett.
Source Genre: Journal
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Pages: - Volume / Issue: 96 (16) Sequence Number: - Start / End Page: 166102–1 - 166102–4 Identifier: -