Magnetization Reversal Behaviour of Planar Nanowire Arrays of Fe
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2013Access:
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Igor Shvets, Brendan O'Dowd, Sunil Kumar Arora, Magnetization Reversal Behaviour of Planar Nanowire Arrays of Fe, Current Nanoscience, 9, 5, 2013, 609 - 604Download Item:
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Abstract:
Systematic investigations of magnetization behavior performed on planar arrays of 30 nm wide Fe-nanowires (NW) fabricated on oxidized step-bunched Si (111) templates reveal that the NW arrays exhibits an uniaxial anisotropy dominated by the shape of the wires, that facilitates in retaining the magnetization in-plane with easy axis parallel to the wires. The NWs possess polycrystalline character with bcc-crystal structure, and present an oxidized interface when capped with MgO. From the temperature dependent magnetization studies we find that for thick wires (>4.5 nm) the magnetization reversal is governed by the curling reversal mode. Whereas, for thin wires the reversal is dominated by thermal activation.
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Science Foundation Ireland (SFI)
06/IN.1/I91
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http://people.tcd.ie/ivchvetsDescription:
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Current Nanoscience9
5
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Magnetic nanowires, Magnetization reversal, Magnetic Anisotropy, Planar Nanowire array, Self-Assembly, Vicinal surfacesSubject (TCD):
Nanoscience & MaterialsLicences: