2008
DOI: 10.1088/0953-8984/20/31/314006
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Bulk and surface structure of the clean and adsorbate-covered decagonal Al–Co–Ni quasicrystal

Abstract: We review our Al adsorption experiments on the tenfold-symmetry surface of the decagonal Al-Co-Ni quasicrystal and present computational simulations of adsorption on a structural model based on a fundamental Al-Co cluster with 20Å diameter, symmetry 102m, and 8Å periodicity. This cluster is the building unit of τ 2 -Al 13 Co 4 , from which, by a sequence of minor changes, the structures of the phases in the stability region of decagonal Al-Co-Ni can be derived. The model used for the decagonal Al 70 Co 15 Ni 1… Show more

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Cited by 12 publications
(14 citation statements)
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“…The AES spectra were recorded using a cylindrical mirror analyzer operating with a constant relative resolution of ∆E/E = 0.8%. Experimental details have previously been reported [14,7,15,10]. Fig.…”
Section: Methodsmentioning
confidence: 99%
“…The AES spectra were recorded using a cylindrical mirror analyzer operating with a constant relative resolution of ∆E/E = 0.8%. Experimental details have previously been reported [14,7,15,10]. Fig.…”
Section: Methodsmentioning
confidence: 99%
“…The polar-angle profiles of the diffraction spots suggest a lateral domain size of at least 100 Å. Apparently, there is no constraint on the domain size, a phenomenon which results from the large interfacial strain usually encountered in quasicrystal-crystal junctions [4,5,7,8]. We note that for the oxide layers grown on the pentagonal surface of i-AlPdMn, the interfacial strain was lowered by the formation of a surface reconstruction on the oxide domains [7], thus, producing several minor diffraction spots evenly distributed over the LEED screen.…”
Section: Leedmentioning
confidence: 96%
“…One example is that, as a consequence of their structural diversities, crystalline adsorbate on a quasicrystalline substrate was found to result in a self-size-selecting growth, leading to a self-assembled, nanometer-size domain structure. This technique is of crucial importance for the controlled growth of metal particles in the applied nanotechnology [4][5][6].…”
Section: Introductionmentioning
confidence: 99%
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“…For a general exposition see the references on quasicrystallography [4]. Decagonal quasicrystals have been extensively studied in the references [5][6].…”
Section: Introductionmentioning
confidence: 99%