S Burkardt et al 2008 J. Phys.: Condens. Matter 20 314006 doi:10.1088/0953-8984/20/31/314006
Bulk and surface structure of the clean and adsorbate-covered decagonal Al–Co–Ni quasicrystal
S Burkardt1, S Deloudi1, M Erbudak1,2, A R Kortan1,3, M Mungan2,4 and W Steurer1
Show affiliationsWe 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 20 Å diameter, symmetry 
, and 8 Å periodicity. This cluster is the building unit of τ2-Al13Co4, 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 Al70Co15Ni15 is an idealized model with a two-layer periodicity (4 Å) and no chemical or structural disorder. We find that the bulk and surface properties of this model are in good agreement with experiments. Our molecular-dynamics simulations of Al adsorption reproduce the experimental results and show that by varying the thermal relaxation rates of the adsorbed layer, a variety of different surface morphologies can be achieved. We also present our recent experiments on dissociative adsorption of oxygen on the decagonal surface.
- PACS
-
68.35.B- Structure of clean surfaces (and surface reconstruction)
61.50.Ah Theory of crystal structure, crystal symmetry; calculations and modeling
- Subjects
- Dates
-
Issue 31 (6 August 2008)
Received 14 May 2008
Published 11 July 2008
-
Bulk and surface structure of the clean and adsorbate-covered decagonal Al–Co–Ni quasicrystal
S Burkardt et al 2008 J. Phys.: Condens. Matter 20 314006
-
Simplified quantum process tomography
M P A Branderhorst et al 2009 New J. Phys. 11 115010
-
Mosaic length and finite interaction-range effects in a one-dimensional random energy model
S Franz et al 2008 J. Phys. A: Math. Theor. 41 324011
-
Structural and Electrical Properties of Single Crystalline Ga-Doped ZnO Thin Films Grown by Molecular Beam Epitaxy
Lu Zhong-Lin et al 2009 Chinese Phys. Lett. 26 116102
-
Self-avoiding walks and polygons on the triangular lattice
Iwan Jensen J. Stat. Mech. (2004) P10008
-
Decoherence and quantum nondemolition measurements in the LIGO project
V B Braginsky 1998 Phys. Scr. 1998 122
-
On particle creation in the flat FRW chart of de Sitter spacetime
Jaume Haro and Emilio Elizalde 2008 J. Phys. A: Math. Theor. 41 372003
-
Tumbleweeds and airborne gravitational noise sources for LIGO
Teviet Creighton 2008 Class. Quantum Grav. 25 125011
-
Spreading dynamics of power-law fluid droplets
Zhan-Peng Liang et al 2009 J. Phys.: Condens. Matter 21 464117
-
Recent results and future challenges for large scale particle-in-cell simulations of plasma-based accelerator concepts
C Huang et al 2009 J. Phys.: Conf. Ser. 180 012005
Users also read
What's this?- Study of arsenic doping ZnO thin films grown by metal–organic chemical vapor deposition via x-ray photoelectron spectroscopy
- The electronic structure of La1−xSrxMnO3 thin films and its Tc dependence as studied using angle-resolved photoemission
- Selective inactivation of human immunodeficiency virus with subpicosecond near-infrared laser pulses
Related review articles
What's this?- Near-surface structural study of transition metal oxides to understand their electronic properties
- Advances on surface structural determination by LEED
- Continuous and discrete modeling of the decay of two-dimensional nanostructures