Volume 75, Number 1, July 2006
|Page(s)||167 - 173|
|Section||Interdisciplinary physics and related areas of science and technology|
|Published online||07 June 2006|
Kinetic growth of nanoclusters with perpendicular magnetic anisotropy
Fachbereich Physik, Universität Konstanz - 78457 Konstanz, Germany
2 Institut für Physik, Technische Universität Ilmenau - 98684 Ilmenau, Germany
Accepted: 12 May 2006
The growth of binary-alloy clusters on a weakly interacting substrate through codeposition of two atomic species is studied by kinetic Monte Carlo simulation. Our model describes salient features of CoPt3 nanoclusters, as obtained recently by the molecular-beam epitaxy technique. The clusters display perpendicular magnetic anisotropy (PMA) in a temperature window of growth favorable for applications. This temperature window is found to arise from the interplay of Pt surface segregation and aspect ratio for cluster shapes. Conclusions are drawn on how to optimize growth parameters with respect to PMA.
PACS: 81.15.Aa – Theory and models of film growth / 68.55.Ac – Nucleation and growth: microscopic aspects
© EDP Sciences, 2006
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