Wearing, L.H., Smerdon, Joe ORCID: 0000-0002-7387-8362, Leung, L., Dhesi, S.S., Ledieu, J., Bencok, P., Fisher, I., Jenks, C.J. and McGrath, R. (2008) Iron deposition on the tenfold surface of the Al72Ni 11Co17 decagonal quasicrystal. Journal of Physics Condensed Matter, 20 (1). 015005. ISSN 09538984
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Official URL: http://dx.doi.org/10.1088/0953-8984/20/01/015005
Abstract
The adsorption behaviour of Fe on the tenfold surface of the decagonal quasicrystal Al72.6Ni10.5Co16.9 has been studied using scanning tunnelling microscopy, low energy electron diffraction (LEED), Auger electron spectroscopy (AES) and x-ray magnetic circular dichroism (XMCD). The results show the growth of a disordered film up to a coverage of 9MLE (monolayer equivalent) after which polycrystalline island growth is observed. These islands are interconnected, and the LEED pattern indicates that they preferentially align along five directions. The AES results indicate that the film is composed of Fe intermixed with the substrate elements. The XMCD results point to an induced magnetic moment for Co and Ni in the intermixed layer/interface region.
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