Uniaxial magnetization reversal process in electrodeposited high-density iron nanowire arrays with ultra-large aspect ratio

Neetzel, Cornelia; Kamimura, Himeyo; Hayashida, Masamitsu; Ohgai, Takeshi

doi:10.1016/j.rinp.2019.102653

Cited by 9 publications

(7 citation statements)

References 30 publications

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“…60 µm in pore length, L (ca. 700~1800 in aspect ratio, L/D) [23]. Hence, in this study, to reduce the effect of contact resistance between a lead wire and an electrodeposited multilayered nanowire, the electrochemical in-situ contact process was applied by using our home-made AAO templates ca.…”

Section: Introductionmentioning

confidence: 99%

CPP-GMR Performance of Electrochemically Synthesized Co/Cu Multilayered Nanowire Arrays with Extremely Large Aspect Ratio

2019

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Anodized aluminum oxide (AAO) films, which have numerous nanochannels ca. 75 nm in diameter, D and ca. 70 µm in length, L (ca. 933 in aspect ratio, L/D), were used as a template material for growing Co/Cu multilayered nanowire arrays. The multilayered nanowires with alternating Cu layer and Co layers were synthesized by using an electrochemical pulsed-potential deposition technique. The thickness of the Cu layer was adjusted from ca. 2 to 4 nm while that of the Co layer was regulated from ca. 13 to 51 nm by controlling the pulsed potential parameters. To get a Co/Cu multilayered nanowire in an electrochemical in-situ contact with a sputter-deposited Au thin layer, the pulsed potential deposition was continued up to ca. 5000 cycles until the nanowire reached out toward the surface of AAO template. Current-perpendicular-to-plane giant magnetoresistance (CPP-GMR) effect reached up to ca. 23.5% at room temperature in Co/Cu multilayered nanowires with ca. 3500 Co/Cu bilayers (Cu: 1.4 nm and Co: 18.8 nm). When decreasing the thickness of Co layer, the CPP-GMR value increased due to the Valet–Fert model in the long spin diffusion limit.

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Section: Introductionmentioning

confidence: 99%

CPP-GMR Performance of Electrochemically Synthesized Co/Cu Multilayered Nanowire Arrays with Extremely Large Aspect Ratio

2019

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“…This outcome could potentially be applied to NWs of higher AR, which typically present a greater challenge of achieving uncollapsed NW arrays. 39…”

Section: Resultsmentioning

confidence: 99%

“…This outcome could potentially be applied to NWs of higher AR, which typically present a greater challenge of achieving uncollapsed NW arrays. 39 Furthermore, the initial layer of Ni NWs constitutes a SA : V ratio of 8.5 Â 10 7 m À1 . Consequently, through a vertical assembly of a second layer, the SA : V significantly increased to 1.4 Â 10 8 m À1 which is a notable improvement compared to those in other studies.…”

Section: Materials Advances Papermentioning

confidence: 99%

Towards three-dimensional nanoarchitectures: highly ordered bi-layer assembly of tailored magnetic nanowire arrays via template-assisted electrodeposition

et al. 2022

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“…[ 124 ] Anodic aluminum oxide (AAO) templates have attracted attention because of their low‐cost, excellent insulativity, and chemical stability. The AAO templates have been used to fabricate, [ 125,126 ] Fe‐Au, [ 127 ] and Co [ 128 ] nanowires through template‐assisted electrodeposition. Template‐assisted synthesis of ZnO nanosheets is illustrated in Figure 2C.…”

Section: Methods Of Synthesismentioning

confidence: 99%

Nonspherical Metal‐Based Nanoarchitectures: Synthesis and Impact of Size, Shape, and Composition on Their Biological Activity

Zare

Zheng

Makvandi

et al. 2021

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Metal‐based nanoentities, apart from being indispensable research tools, have found extensive use in the industrial and biomedical arena. Because their biological impacts are governed by factors such as size, shape, and composition, such issues must be taken into account when these materials are incorporated into multi‐component ensembles for clinical applications. The size and shape (rods, wires, sheets, tubes, and cages) of metallic nanostructures influence cell viability by virtue of their varied geometry and physicochemical interactions with mammalian cell membranes. The anisotropic properties of nonspherical metal‐based nanoarchitectures render them exciting candidates for biomedical applications. Here, the size‐, shape‐, and composition‐dependent properties of nonspherical metal‐based nanoarchitectures are reviewed in the context of their potential applications in cancer diagnostics and therapeutics, as well as, in regenerative medicine. Strategies for the synthesis of nonspherical metal‐based nanoarchitectures and their cytotoxicity and immunological profiles are also comprehensively appraised.

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Uniaxial magnetization reversal process in electrodeposited high-density iron nanowire arrays with ultra-large aspect ratio

Cited by 9 publications

References 30 publications

CPP-GMR Performance of Electrochemically Synthesized Co/Cu Multilayered Nanowire Arrays with Extremely Large Aspect Ratio

CPP-GMR Performance of Electrochemically Synthesized Co/Cu Multilayered Nanowire Arrays with Extremely Large Aspect Ratio

Towards three-dimensional nanoarchitectures: highly ordered bi-layer assembly of tailored magnetic nanowire arrays via template-assisted electrodeposition

Nonspherical Metal‐Based Nanoarchitectures: Synthesis and Impact of Size, Shape, and Composition on Their Biological Activity

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