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Science 3 September 1993:
Vol. 261. no. 5126, pp. 1316 - 1319
DOI: 10.1126/science.261.5126.1316
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Articles

Fabrication and Magnetic Properties of Arrays of Metallic Nanowires

T. M. Whitney 1, P. C. Searson 1, J. S. Jiang 2, and C. L. Chien 2

1 Department of Materials Science and Engineering, The Johns Hopkins University, Baltimore, MD 21218
2 Department of Physics and Astronomy, The Johns Hopkins University, Baltimore, MD 21218

Arrays of ferromagnetic nickel and cobalt nanowires have been fabricated by electrochemical deposition of the metals into templates with nanometer-sized pores prepared by nuclear track etching. These systems display distinctive characteristics because of their one-dimensional microstructure. The preferred magnetization direction is perpendicular to the film plane. Enhanced coercivities as high as 680 oersteds and remnant magnetization up to 90 percent have also been observed.

Submitted on April 14, 1993
Accepted on July 12, 1993


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Science. ISSN 0036-8075 (print), 1095-9203 (online)