![](https://d3ilqtpdwi981i.cloudfront.net/j9NUwJoIsGmj_b81G-4Kx00310I=/425x550/smart/https://bepress-attached-resources.s3.amazonaws.com/uploads/a4/3e/b9/a43eb9c6-6fd8-4484-8324-bdca8866fc13/thumbnail_dfbb9ca4-feda-49d4-bf87-eee1f6a9e2c6.jpg)
Article
Characterization of aperiodic and periodic thin Cu films formed on the five-fold surface of i-Al70Pd21Mn9 using medium-energy ion scattering spectroscopy
Physical Review B
Document Type
Article
Disciplines
Publication Date
7-27-2006
DOI
10.1103/PhysRevB.74.035429
Abstract
The elucidation of the local atomic structure of a pseudomorphic film of Cu deposited on the five-fold surface of i-Al70Pd21Mn9using medium-energy ion scattering spectroscopy is reported. Monte Carlo calculations, using the VEGAS code, have been utilized to simulate the blocking of 100 keV He+ ions scattered from the overlayer. The coordinates of the Cu atoms in the overlayer derived from this procedure are consistent with a structure occurring in five rotational domains. Each domain consists of nanoscale strips of fcc Cu(100) with the ⟨110⟩ azimuth aligned along the five-fold directions of the quasicrystalline substrate. The strips are arranged according to a one-dimensional Fibonacci sequence with long and short widths related by the golden mean τ. Upon annealing the film transforms to an alloyed structure composed of five orientational domains of fcc material with the (110) axis perpendicular to the surface.
Copyright Owner
American Physical Society
Copyright Date
2006
Language
en
File Format
application/pdf
Citation Information
J. A. Smerdon, J. Ledieu, R. McGrath, T. C. Q. Noakes, et al.. "Characterization of aperiodic and periodic thin Cu films formed on the five-fold surface of i-Al70Pd21Mn9 using medium-energy ion scattering spectroscopy" Physical Review B Vol. 74 Iss. 3 (2006) p. 035429 Available at: http://works.bepress.com/thomas_lograsso/73/
This article is from Physical Review B 74 (2006): 035429, doi:10.1103/PhysRevB.74.035429.