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Persistent URL http://purl.org/net/epubs/work/35924
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Record Id 35924
Title Characterization of aperiodic and periodic thin Cu films formed on the five-fold surface
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
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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