Ordering of Si atoms on the fivefold Al-Pd-Mn quasicrystal surface

Date
2006-01-12
Authors
Ledieu, J.
Unsworth, P.
Lograsso, Thomas
Ross, A.
McGrath, R.
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Ames Laboratory
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Abstract

Silicon atoms are found to form an ordered overlayer on the fivefold surface of the icosahedral Al-Pd-Mn quasicrystal. Using scanning tunneling microscopy, the adsorption site is identified as the center of truncated clusters which are building blocks of the bulk structure. Comparison with theoretical models suggests that this site is favored because of bonding to Mn atoms.

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This article is from Physical Review B 73 (2006): 012204, doi:10.1103/PhysRevB.73.012204.

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