Abstract

A synthesis method was developed for producing core-shell nanowire arrays, which involved a combination of a modified sol-gel process, electrochemical deposition, and subsequent oxidization in anodized nanoporous alumina membranes. This method was applied to generate ordered arrays of one dimensional multiferroic NiFe₂O₄ core and Pb(Zr₀.₅₂Ti₀.₄₈)O₃ (PZT) shell nanostructures. Extensive microstructural, magnetic, and ferroelectric characterizations confirmed that the regular arrays of core-shell multiferroic nanostructures were composed of a spinel NiFe₂O₄ core and perovskite PZT shell. This synthesis method can be readily extended to prepare different core-shell nanowire arrays and is expected to pave the way for one dimensional core-shell nanowire arrays.

Notes

Originally published in Applied Physics Letters, vol.90, no.15, April 2007. doi: 10.1063/1.2722043

Keywords

nanowire arrays, multiferroic materials

Subject Categories

Ferrites (Magnetic materials), Nanowires

Disciplines

Chemical Engineering | Electrical and Computer Engineering

Publisher

American Institute of Physics

Publication Date

4-2007

Rights Information

Copyright 2007

Rights Holder

American Institute of Physics

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