Structural and magnetic properties of ε -Fe1-x Cox Si thin films deposited via pulsed laser deposition

Ncholu Manyala; Balla D. Ngom; A. C. Beye; Remy Bucher; Malik Maaza; Andre Strydom; Andrew Forbes; A. T.Charlie Johnson; J. F. Ditusa

doi:10.1063/1.3152766

Structural and magnetic properties of ε -Fe1-x Cox Si thin films deposited via pulsed laser deposition

Ncholu Manyala, Balla D. Ngom, A. C. Beye, Remy Bucher, Malik Maaza, Andre Strydom, Andrew Forbes, A. T.Charlie Johnson, J. F. Ditusa

Physics

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

8 Citations (Scopus)

Abstract

We report pulsed laser deposition synthesis and characterization of polycrystalline Fe1-x Cox Si thin films on Si (111). X-ray diffraction, transmission electron, and atomic force microscopies reveal films to be dense, very smooth, and single phase with a cubic B20 crystal structure. Ferromagnetism with significant magnetic hysteresis is found for all films including nominally pure FeSi films in contrast to the very weak paramagnetism of bulk FeSi. For Fe1-x Cox Si this signifies a change from helimagnetism in bulk, to ferromagnetism in thin films. These ferromagnetic thin films are promising as a magnetic-silicide/silicon system for polarized current production, manipulation, and detection.

Original language	English
Article number	232503
Journal	Applied Physics Letters
Volume	94
Issue number	23
DOIs	https://doi.org/10.1063/1.3152766
Publication status	Published - 2009

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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abstract = "We report pulsed laser deposition synthesis and characterization of polycrystalline Fe1-x Cox Si thin films on Si (111). X-ray diffraction, transmission electron, and atomic force microscopies reveal films to be dense, very smooth, and single phase with a cubic B20 crystal structure. Ferromagnetism with significant magnetic hysteresis is found for all films including nominally pure FeSi films in contrast to the very weak paramagnetism of bulk FeSi. For Fe1-x Cox Si this signifies a change from helimagnetism in bulk, to ferromagnetism in thin films. These ferromagnetic thin films are promising as a magnetic-silicide/silicon system for polarized current production, manipulation, and detection.",

author = "Ncholu Manyala and Ngom, {Balla D.} and Beye, {A. C.} and Remy Bucher and Malik Maaza and Andre Strydom and Andrew Forbes and Johnson, {A. T.Charlie} and Ditusa, {J. F.}",

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T1 - Structural and magnetic properties of ε -Fe1-x Cox Si thin films deposited via pulsed laser deposition

AU - Manyala, Ncholu

AU - Ngom, Balla D.

AU - Beye, A. C.

AU - Bucher, Remy

AU - Maaza, Malik

AU - Strydom, Andre

AU - Forbes, Andrew

AU - Johnson, A. T.Charlie

AU - Ditusa, J. F.

PY - 2009

Y1 - 2009

N2 - We report pulsed laser deposition synthesis and characterization of polycrystalline Fe1-x Cox Si thin films on Si (111). X-ray diffraction, transmission electron, and atomic force microscopies reveal films to be dense, very smooth, and single phase with a cubic B20 crystal structure. Ferromagnetism with significant magnetic hysteresis is found for all films including nominally pure FeSi films in contrast to the very weak paramagnetism of bulk FeSi. For Fe1-x Cox Si this signifies a change from helimagnetism in bulk, to ferromagnetism in thin films. These ferromagnetic thin films are promising as a magnetic-silicide/silicon system for polarized current production, manipulation, and detection.

AB - We report pulsed laser deposition synthesis and characterization of polycrystalline Fe1-x Cox Si thin films on Si (111). X-ray diffraction, transmission electron, and atomic force microscopies reveal films to be dense, very smooth, and single phase with a cubic B20 crystal structure. Ferromagnetism with significant magnetic hysteresis is found for all films including nominally pure FeSi films in contrast to the very weak paramagnetism of bulk FeSi. For Fe1-x Cox Si this signifies a change from helimagnetism in bulk, to ferromagnetism in thin films. These ferromagnetic thin films are promising as a magnetic-silicide/silicon system for polarized current production, manipulation, and detection.

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Structural and magnetic properties of ε -Fe1-x Cox Si thin films deposited via pulsed laser deposition

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