Magnetic behaviour of densely packed hexagonal arrays of Ni nanowires: Influence of geometric characteristics

Vázquez, M.; Pirota, K. R.; Torrejón, Jacob; Navas, D.; Hernández‐Vélez, M.

doi:10.1016/j.jmmm.2005.03.032

Cited by 97 publications

(65 citation statements)

References 16 publications

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“…Nanowire magnetization process is generally in three areas by the following factors [17,18]: magnetocrystalline anisotropy, shape anisotropy, and the interaction between the nanowires. Some works [19,20] have reported that the effective anisotropy of the magnetic nanowire arrays comes from the competition between the magnetocrystalline anisotropy and the shape anisotropy.…”

Section: Resultsmentioning

confidence: 99%

Diameter‐Controllable Magnetic Properties of Co Nanowire Arrays by Pulsed Electrodeposition

Yang

Chen

et al. 2010

Journal of Nanomaterials

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The Co nanowires with different diameters were prepared by pulsed electrodeposition into anodic alumina membranes oxide templates. The micrographs and crystal structures of nanowires were studied by FE-SEM, TEM, and XRD. Due to their cylindrical shape, the nanowires exhibit perpendicular anisotropy. The coercivity and loop squareness (Mr/Ms) of Co nanowires depend strongly on the diameter. Both coercivity and Mr/Ms decrease with increasing wire diameter. The behavior of the nanowires is explained briefly in terms of localized magnetization reversal.

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Section: Resultsmentioning

confidence: 99%

Diameter‐Controllable Magnetic Properties of Co Nanowire Arrays by Pulsed Electrodeposition

Yang

Chen

et al. 2010

Journal of Nanomaterials

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“…However, this model describes only single, isolated nanowires and neglects magnetostatic interactions, which become important when an array of nanowires is investigated [16,50].…”

Section: On the Influence Of Magnetostatic Interactionsmentioning

confidence: 99%

Magnetic nanowires by electrodeposition within templates

Schlörb

Haehnel

Khatri

et al. 2010

Physica Status Solidi (b)

145

111

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Magnetic nanowire arrays allow studying magnetism at the nanoscale and have broad application areas. Here we review our recent experiments on tailoring the structure and microstructure of electrochemically grown elemental (Fe, Ni, Co) and alloy (Co-Pt) magnetic nanowires. The comparison of these different materials allows identifying the role of shape, magnetocrystalline and magnetoelastic anisotropies as well as magnetostatic interactions.

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“…22 As it has been shown for nanowires grown in alumina membranes, the former certainly depends strongly on the interwire distances and typically manifests through a decreasing coercive field along H ʈ with an increasing ratio of nanowire diameter to interwire spacing. 23 Although the use of randomly distributed array of nanopores which is characteristic of the polycarbonate membranes does not allow an exhaustive control of the interwire distances, an average value of ϳ500 nm can be deduced, which is one order of magnitude larger than the typical nanowire diameter. Therefore, for our case the dipolar interactions have a minor effect for sufficiently long nanowires.…”

mentioning

confidence: 99%

Interplay between the magnetic anisotropy contributions of cobalt nanowires

et al. 2009

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We report on the magnetic properties and the crystallographic structure of the cobalt nanowire arrays as a function of their nanoscale dimensions. X-ray diffraction measurements show the appearance of an in-plane hcp-Co phase for nanowires with 50 nm diameter, suggesting a partial reorientation of the magnetocrystalline anisotropy axis along the membrane plane with increasing pore diameter. No significant changes in the magnetic behavior of the nanowire system are observed with decreasing temperature, indicating that the effective magnetoelastic anisotropy does not play a dominant role in the remagnetization processes of individual nanowires. An enhancement of the total magnetic anisotropy is found at room temperature with a decreasing nanowire diameter-to-length ratio ͑d / L͒, a result that is quantitatively analyzed on the basis of a simplified shape anisotropy model.

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Magnetic behaviour of densely packed hexagonal arrays of Ni nanowires: Influence of geometric characteristics

Cited by 97 publications

References 16 publications

Diameter‐Controllable Magnetic Properties of Co Nanowire Arrays by Pulsed Electrodeposition

Diameter‐Controllable Magnetic Properties of Co Nanowire Arrays by Pulsed Electrodeposition

Magnetic nanowires by electrodeposition within templates

Interplay between the magnetic anisotropy contributions of cobalt nanowires

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