Magnetic properties of self-assembled Co nanowires of varying length and diameter

H. Zeng, M. Zheng, R. Skomski, D. J. Sellmyer, Y. Liu, L. Menon, S. Bandyopadhyay

Research output: Contribution to journalArticle

237 Citations (Scopus)

Abstract

Ferromagnetic Co nanowires have been electrodeposited into self-assembled porous anodic alumina arrays. Due to their cylindrical shape, the nanowires exhibit perpendicular anisotropy. The coercivity, remanence ratio, and activation volumes of Co nanowires depend strongly on the length, diameter, and spacing of the nanowires. Both coercivity and thermal activation volume increase with increasing wire length, while for constant center-to-center spacing, coercivity decreases and thermal activation volume increases with increasing wire diameter. The behavior of the nanowires is explained qualitatively in terms of localized magnetization reversal.

Original languageEnglish (US)
Pages (from-to)4718-4720
Number of pages3
JournalJournal of Applied Physics
Volume87
Issue number9 II
StatePublished - May 1 2000

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nanowires
magnetic properties
coercivity
activation
spacing
wire
remanence
aluminum oxides
magnetization
anisotropy

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Zeng, H., Zheng, M., Skomski, R., Sellmyer, D. J., Liu, Y., Menon, L., & Bandyopadhyay, S. (2000). Magnetic properties of self-assembled Co nanowires of varying length and diameter. Journal of Applied Physics, 87(9 II), 4718-4720.

Magnetic properties of self-assembled Co nanowires of varying length and diameter. / Zeng, H.; Zheng, M.; Skomski, R.; Sellmyer, D. J.; Liu, Y.; Menon, L.; Bandyopadhyay, S.

In: Journal of Applied Physics, Vol. 87, No. 9 II, 01.05.2000, p. 4718-4720.

Research output: Contribution to journalArticle

Zeng, H, Zheng, M, Skomski, R, Sellmyer, DJ, Liu, Y, Menon, L & Bandyopadhyay, S 2000, 'Magnetic properties of self-assembled Co nanowires of varying length and diameter', Journal of Applied Physics, vol. 87, no. 9 II, pp. 4718-4720.
Zeng H, Zheng M, Skomski R, Sellmyer DJ, Liu Y, Menon L et al. Magnetic properties of self-assembled Co nanowires of varying length and diameter. Journal of Applied Physics. 2000 May 1;87(9 II):4718-4720.
Zeng, H. ; Zheng, M. ; Skomski, R. ; Sellmyer, D. J. ; Liu, Y. ; Menon, L. ; Bandyopadhyay, S. / Magnetic properties of self-assembled Co nanowires of varying length and diameter. In: Journal of Applied Physics. 2000 ; Vol. 87, No. 9 II. pp. 4718-4720.
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