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Atomic structure and magnetic moments in cluster-assembled nanocomposite Fe∕Cu films

By S.H. Baker, A.M. Asaduzzaman, Mervyn Roy, Steve J. Gurman, C. Binns, J.A. Blackman and Y. Xie


This paper was published as Physical Review B: Condensed Matter and Materials Physics, 2008, 78 (1), 4422. It is available from Doi: 10.1103/PhysRevB.78.014422Metadata only entryThe atomic structure and net magnetic moments in nanosized Fe clusters embedded in Cu were determined as a function of cluster filling fraction by extended x-ray-absorption fine structure (EXAFS) and magnetometry measurements, respectively. Below the percolation threshold (∼25%), the Fe clusters have an fcc structure with a lattice parameter of 3.58±0.02 Å and are ferromagnetic with a net atomic magnetic moment of 0.4–0.9 μB. Spin polarized electronic structure calculations were also performed on Fe core/Cu shell systems to investigate the magnetic behavior as a function of lattice spacing; the calculated moments correlate well with experiment

Publisher: American Physical Society
Year: 2008
DOI identifier: 10.1103/PhysRevB.78.014422
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