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The (100) surface of the Al13Co4 quasicrystalline approximant

Published online by Cambridge University Press:  11 December 2012

Vincent Fournée ,
Émilie Gaudry ,
Marie-Cécile de Weerd ,
Renee D. Diehl  and
Julian Ledieu
Vincent Fournée
Affiliation:
Institut Jean Lamour, UMR 7198 CNRS – Université de Lorraine, Parc de Saurupt, 54011 Nancy Cedex, France.
Émilie Gaudry
Affiliation:
Institut Jean Lamour, UMR 7198 CNRS – Université de Lorraine, Parc de Saurupt, 54011 Nancy Cedex, France.
Marie-Cécile de Weerd
Affiliation:
Institut Jean Lamour, UMR 7198 CNRS – Université de Lorraine, Parc de Saurupt, 54011 Nancy Cedex, France.
Renee D. Diehl
Affiliation:
Department of Physics, Penn State University, University Park, PA 16802, USA.
Julian Ledieu
Affiliation:
Institut Jean Lamour, UMR 7198 CNRS – Université de Lorraine, Parc de Saurupt, 54011 Nancy Cedex, France.
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Abstract

The structure of the (100) surface of the orthorhombic Al13Co4quasicrystalline approximant is described based on a combined scanning tunneling microscopy (STM), low-energy electron diffraction (LEED), and density functional theory (DFT) study. We discuss the interplay between the surface structure and the cluster substructure of this approximant as well as possible off-stoichiometry effects that could explain the discrepancies found in the literature on possible surface models.

Keywords

quasicrystalscanning tunneling microscopy (STM)structural
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1517: Symposium KK – Complex Metallic Alloys , 2013 , mrsf12-1517-kk02-07
Copyright
Copyright © Materials Research Society 2012

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References

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