Nanoepitaxy on quasicrystal surfaces

In film growth on quasicrystalline surfaces, the epitaxy-imposed ordering cannot compete with the stable bulk phases of thick films due to absence of translational order in the structure of the substrate. Energetically, this renders the formation of crystalline domains in the native structure of the...

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Bibliographic Details
Published in:arXiv.org 2009-10
Main Authors: Erbudak, Mehmet, Mungan, Muhittin, Burkardt, Sven
Format: Article
Language:English
Subjects:
Adatoms
Aluminum
Chemisorption
Domains
Epitaxial growth
Film growth
Molecular dynamics
Nickel
Organic chemistry
Quasicrystals
Substrates
Thick films
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Summary:In film growth on quasicrystalline surfaces, the epitaxy-imposed ordering cannot compete with the stable bulk phases of thick films due to absence of translational order in the structure of the substrate. Energetically, this renders the formation of crystalline domains in the native structure of the film material more favorable while their global orientation is prescribed by the quasicrystalline order. We present experimental results on the dissociative chemisorption of oxygen on the decagonal surface of Al\(_{70}\)Co\(_{15}\)Ni\(_{15}\) as well as molecular-dynamics simulations of the diffusion of adatoms on the surface of the partially covered substrate.
ISSN:2331-8422
DOI:10.48550/arxiv.0910.4655