期刊
SURFACE SCIENCE
卷 601, 期 2, 页码 544-551出版社
ELSEVIER
DOI: 10.1016/j.susc.2006.10.017
关键词
Co deposition; Al-Pd-Mn; quasicrystals; interfaces; alloy formation; surface alloys; body-centred cubic Co
We have evaporated Co on the pentagonal surface of an icosahedral Al-Pd-Mn quasicrystal kept at room temperature. For submonolayer Co deposits, five AlCo domains are formed exposing their (110) faces parallel to the surface and rotated by 72 degrees with respect to each other. The orientational relationship between these domains and the substrate is determined by the optimum matching of the average quasicrystal structure and the CsCl structure with a lattice constant of about 2.88 angstrom. For further deposition, body-centred cubic Co domains grow epitaxially on the AlCo domains. (c) 2006 Elsevier B.V. All rights reserved.
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