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Full Record Details
Persistent URL
http://purl.org/net/epubs/work/35924
Record Status
Checked
Record Id
35924
Title
Characterization of aperiodic and periodic thin Cu films formed on the five-fold surface
Contributors
JA Smerdon (Liverpool)
,
J Ledieu (Liverpool)
,
R McGrath (Liverpool)
,
T C Q Noakes (CCLRC Daresbury Lab.)
,
P Bailey (CCLRC Daresbury Lab.)
,
M Draxler (Warwick)
,
CF McConville (Warwick)
,
TA Lograsso (Iowa State)
,
AR Ross (Iowa State)
Abstract
The elucidation of the local atomic structure of a pseudomorphic film of Cu deposited on the five-fold surface of i-Al70Pd21Mn9 using 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 . 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.
Organisation
CCLRC
,
SND
,
MEIS
Keywords
Physics
Funding Information
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Language
English (EN)
Type
Details
URI(s)
Local file(s)
Year
Journal Article
Phys Rev B
74 (2006): 035429.
doi:10.1103/PhysRevB.74.035429
2006
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