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A multistep ac electrodeposition method to prepare Co nanowires with high coercivity
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10.1063/1.2975843
/content/aip/journal/jap/104/6/10.1063/1.2975843
http://aip.metastore.ingenta.com/content/aip/journal/jap/104/6/10.1063/1.2975843
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Top view SEM image of the AAO template prepared by a two-step anodizing method under 18 V in 0.3 mol/l aqueous solution for 2 h at . The average pore diameter and interpore distance are 30 and 50 nm, respectively.

Image of FIG. 2.
FIG. 2.

Schematic diagram of the growth mechanisms of Co nanowires deposited into the nanoscale pores of AAO template: (a) high current density and (b) relatively low current density (Ref. 14).

Image of FIG. 3.
FIG. 3.

Voltage-time and current density-time curves for two electrodeposition methods: (a) constant voltage ac electrodeposition and (b) multistep ac electrodeposition.

Image of FIG. 4.
FIG. 4.

TEM images of Co nanowires: (a) top view of partly dissolved AAO template with Co nanowires, (b) released Co nanowires, and (c) electron diffraction patterns for single nanowire.

Image of FIG. 5.
FIG. 5.

loops of the Co nanowires when and (where is the angle between the applied magnetic field and the axial direction of the nanowires).

Image of FIG. 6.
FIG. 6.

Change curves of coercivity and remnant ratio of Co nanowires depending on different .

Image of FIG. 7.
FIG. 7.

Magnetic structures for different models: (a) chain-of-spheres model: symmetric fanning mechanism, (b) chain-of-prolate-spheroids model: symmetric fanning mechanism, and (c) single prolate spheroid model (Refs. 32–34).

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/content/aip/journal/jap/104/6/10.1063/1.2975843
2008-09-19
2014-04-18
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: A multistep ac electrodeposition method to prepare Co nanowires with high coercivity
http://aip.metastore.ingenta.com/content/aip/journal/jap/104/6/10.1063/1.2975843
10.1063/1.2975843
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