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Preparation of Fe-Pt Nanowires through Anodic Oxidation of Sputtered Aluminum on Glass Surface

Published online by Cambridge University Press:  01 February 2011

Satoru Inoue ,
Song-Zhu Chu ,
Kenji Wada  and
Yasushi Kanke
Satoru Inoue
Affiliation:
Advanced Materials Laboratory, National Institute for Materials Science, Namiki 1–1, Tsukuba 305–0044, Ibaraki, Japan
Song-Zhu Chu
Affiliation:
Advanced Materials Laboratory, National Institute for Materials Science, Namiki 1–1, Tsukuba 305–0044, Ibaraki, Japan
Kenji Wada
Affiliation:
Advanced Materials Laboratory, National Institute for Materials Science, Namiki 1–1, Tsukuba 305–0044, Ibaraki, Japan
Yasushi Kanke
Affiliation:
Advanced Materials Laboratory, National Institute for Materials Science, Namiki 1–1, Tsukuba 305–0044, Ibaraki, Japan
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Abstract

New process for the preparation of Fe-Pt nanowires has been developed through anodic oxidation and electro deposition technique. Aluminum thin film sputtered on ITO thin film on a glass surface was decomposed into alumina by anodic oxidation technique. The anodic alumina layer possessed nanometer size pore array standing on the glass surface. The barrier layer at the bottom of nanopores was removed by acid etching to attain DC field smooth electro deposition. Fe-Pt components were introduced into nanopores of anodic alumina by electro deposition. The magnetization of Fe-Pt nanowires was investigated. The magnetization perpendicular to the glass surface was very strong and the in-plane magnetization was very small, indicating that the magnetic Fe-Pt nanowires could be potentially applied to ultra high density magnetic recording. The density of the nanowires was estimated to be about 1T bits /inch2.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 788: Symposium L – Continuous Nanophase and Nanostructured Materials , 2003 , L8.4
Copyright
Copyright © Materials Research Society 2004

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