The magnetic properties of CoPt, bulk and ultra-thin films: An ab initio study

Wilson, D, Wilson, N, Snook, I and Russo, S 2008, 'The magnetic properties of CoPt, bulk and ultra-thin films: An ab initio study', Journal of Computational and Theoretical Nanoscience, vol. 5, no. 1, pp. 44-47.


Document type: Journal Article
Collection: Journal Articles

Title The magnetic properties of CoPt, bulk and ultra-thin films: An ab initio study
Author(s) Wilson, D
Wilson, N
Snook, I
Russo, S
Year 2008
Journal name Journal of Computational and Theoretical Nanoscience
Volume number 5
Issue number 1
Start page 44
End page 47
Total pages 4
Publisher American Scientific Publishers
Abstract Magnetic CoPt nanoparticles in the ordered L10 phase have recently been fabricated primarily for use in high density data storage applications. In this study, the results of ab initio simulations of the L10 phase and ultra-thin films of CoPt using the generalised gradient approximation (GGA), pseudopotentials, a plane wave basis set and spin-orbit coupling are presented. Calculated structural parameters and magnetic moments for the bulk are in very good agreement with experimental results. The calculated structural parameters of ultra-thin films of CoPt are shown to vary little from that of the bulk but the magnetic moments for these thin films show a significant increase with decreasing film thickness.
Subject Atomic, Molecular, Nuclear, Particle and Plasma Physics not elsewhere classified
Keyword(s) density functional theory
CoPt
magnetic moment
thin films
ferromagnetic
anti-ferro magnetic
DOI - identifier 10.1166/jctn.2008.005
ISSN 1546-1955
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