Magnetic Nanowires

Piraux, Luc

doi:10.3390/app10051832

Cited by 61 publications

(35 citation statements)

References 120 publications

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“…In particular, we assume a simple mean field approximation for the interaction field and that this average interaction field results solely in a dipolar shearing of the M(H) curves. Arrays of magnetic NWs are a model system due to their cylindrical shape and the easy to control their height as well as the interaction field strength 32,33 . Moreover, they have been shown to be well suited to be used for the analysis of FORC diagrams 14 .…”

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confidence: 99%

Relation of the average interaction field with the coercive and interaction field distributions in First order reversal curve diagrams of nanowire arrays

Velázquez

Guerrero

Martínez

et al. 2020

Sci Rep

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First-order reversal curve diagrams, or FORC diagrams, have been studied to determine if the widths of their distributions along the interaction and coercivity axes can be related to the mean-field magnetization dependent interaction field (MDIF). Arrays of nanowires with diameters ranging from 18 up to 100 nm and packing fractions varying from 0.4 to 12% have been analyzed. The mean-field MDIF has been measured using the remanence curves and used as a measuring scale on the FORC diagrams. Based on these measurements, the full width of the interaction field distribution and the full width at half maximum (FWHM) of the FORC distribution profile along the interaction field direction are shown to be proportional to the MDIF, and the relation between them is found. Moreover, by interpreting the full width of the coercive field distribution in terms of the dipolar induced shearing, a simple relation is found between the width of this distribution and the MDIF. Furthermore, we show that the width of the FORC distribution along the coercive field axis is equal to the width of the switching field distribution obtained by the derivation of the DC remanence curve. This was further verified with the switching field distribution determined using in-field magnetic force microscopy (MFM) for very low density nanowires. The results are further supported by the good agreement found between the experiments and the values calculated using the mean-field model, which provides analytical expressions for both FORC distributions.

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confidence: 99%

Relation of the average interaction field with the coercive and interaction field distributions in First order reversal curve diagrams of nanowire arrays

Velázquez

Guerrero

Martínez

et al. 2020

Sci Rep

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“…The template-assisted electrochemical deposition has been broadly used in the synthesis of the magnetic nanowires as this method provides a highly controllable route for achieving precise dimension and compositions [48] (Figure 8). The template-assisted method can be divided into two categories depending on the template utilized, polymeric templates or anodic templates.…”

Section: Electrochemical Depositionmentioning

confidence: 99%

A Guideline for Effectively Synthesizing and Characterizing Magnetic Nanoparticles for Advancing Nanobiotechnology: A Review

Kouhpanji

Stadler

2020

Sensors

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The remarkable multimodal functionalities of magnetic nanoparticles, conferred by their size and morphology, are very important in resolving challenges slowing the progression of nanobiotechnology. The rapid and revolutionary expansion of magnetic nanoparticles in nanobiotechnology, especially in nanomedicine and therapeutics, demands an overview of the current state of the art for synthesizing and characterizing magnetic nanoparticles. In this review, we explain the synthesis routes for tailoring the size, morphology, composition, and magnetic properties of the magnetic nanoparticles. The pros and cons of the most popularly used characterization techniques for determining the aforementioned parameters, with particular focus on nanomedicine and biosensing applications, are discussed. Moreover, we provide numerous biomedical applications and highlight their challenges and requirements that must be met using the magnetic nanoparticles to achieve the most effective outcomes. Finally, we conclude this review by providing an insight towards resolving the persisting challenges and the future directions. This review should be an excellent source of information for beginners in this field who are looking for a groundbreaking start but they have been overwhelmed by the volume of literature.

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“…Nanowires made of Co, Fe, Ni, Py, and their alloys have interesting magnetic properties reviewed by Piraux [7]. As illustrated in his paper, complex and reproducible structures were obtained by electrodeposition techniques, including core-shell nanowires, multilayered nanowires, and 3D networks of interconnected nanowires.…”

Section: Production Applications and Toxicitymentioning

confidence: 99%