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Equilibrium structure of decagonal AlNiCo

Published online by Cambridge University Press:  01 February 2011

S. Naidu ,
M. Mihalkovič  and
M. Widom
S. Naidu
Affiliation:
Department of Physics, Carnegie Mellon University, Pittsburgh, PA 15213
M. Mihalkovič
Affiliation:
also at:Institute of Physics, Slovak Academy of Sciences, 84228 Bratislava, Slovakia
M. Widom
Affiliation:
Department of Physics, Carnegie Mellon University, Pittsburgh, PA 15213
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Abstract

We investigate the high temperature decagonal quasicrystalline phase of Al72Ni20Co8 using a quasilattice gas Monte-Carlo simulation. To avoid biasing towards a specific model we use an over-dense site list with a large fraction of free sites, permitting the simulation to explore an extended region of perpendicular space. Representing the atomic surface occupancy in a basis of harmonic functions directly reveals the 5-fold symmetric component of our data. Occupancy is examined in physical and perpendicular space.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 805: Symposium LL – Quasicrystals , 2003 , LL7.6
Copyright
Copyright © Materials Research Society 2004

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References

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