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

S. H. Baker; Abu Asaduzzaman; M. Roy; S. J. Gurman; C. Binns; J. A. Blackman; Y. Xie

doi:10.1103/PhysRevB.78.014422

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

S. H. Baker, Abu Asaduzzaman, M. Roy, S. J. Gurman, C. Binns, J. A. Blackman, Y. Xie

School of Science, Engineering & Technology (Harrisburg)

Research output: Contribution to journal › Article › peer-review

22 Scopus citations

Abstract

The 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.

Original language	English (US)
Article number	014422
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	78
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevB.78.014422
State	Published - Jul 22 2008

All Science Journal Classification (ASJC) codes

Condensed Matter Physics

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10.1103/PhysRevB.78.014422

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abstract = "The 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 {\AA} 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.",

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AU - Baker, S. H.

AU - Asaduzzaman, Abu

AU - Roy, M.

AU - Gurman, S. J.

AU - Binns, C.

AU - Blackman, J. A.

AU - Xie, Y.

PY - 2008/7/22

Y1 - 2008/7/22

N2 - The 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.

AB - The 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.

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

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