Fabrication and magnetic properties of ordered macroporous nickel structures

被引：23

作者：

Hao, Yaowu ^{[1
]}

Zhu, F. Q.

Chien, C. L.

Searson, Peter C.

机构：

[1] Johns Hopkins Univ, Dept Mat Sci & Engn, Baltimore, MD 21218 USA

[2] Johns Hopkins Univ, Dept Phys, Baltimore, MD 21218 USA

来源：

JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 2007年 / 154卷 / 02期

关键词：

D O I：

10.1149/1.2400604

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Here we report on the fabrication of ordered macroporous nickel structures by electrodeposition into colloidal crystal templates formed by self-assembly of polystyrene particles with diameters from 100 nm to 1 mu m. The current during deposition into well-ordered colloidal crystals with low defect density exhibits periodic oscillations associated with the change in fractional area within the crystal. Magnetic hysteresis loops and magnetoresistance measurements are performed as a function of pore diameter and film thickness. The magnetic properties can be explained by modeling the ordered macroporous nickel structures as a three-dimensional network structure with magnetic particles connected by narrow ligaments. (c) 2006 The Electrochemical Society. All rights reserved.

引用

页码：D65 / D69

页数：5

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