Iron deposition on the tenfold surface of the Al72Ni11Co17 decagonal quasicrystal

TitleIron deposition on the tenfold surface of the Al72Ni11Co17 decagonal quasicrystal
Publication TypeJournal Article
Year of Publication2008
AuthorsWearing LH, Smerdon JA, Leung L, Dhesi SS, Ledieu J, Bencok P, Fisher I, Jenks CJ, McGrath R
Journal TitleJournal of Physics-Condensed Matter
Volume20
Pages015005
Date PublishedJan
Type of ArticleArticle
ISBN Number0953-8984
Accession NumberISI:000252921800006
Keywordsal-pd-mn, ENERGY ION-SCATTERING, film growth, order, spectroscopy
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 9 MLE (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.

DOI10.1088/0953-8984/20/01/015005
Alternate JournalJ. Phys.-Condes. Matter