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

doi:10.1063/1.373137

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

Physics and Astronomy

Research output: Contribution to journal › Conference article › peer-review

261 Scopus citations

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 language	English (US)
Pages (from-to)	4718-4720
Number of pages	3
Journal	Journal of Applied Physics
Volume	87
Issue number	9 II
DOIs	https://doi.org/10.1063/1.373137
State	Published - May 2000
Event	44th Annual Conference on Magnetism and Magnetic Materials - San Jose, CA, United States Duration: Nov 15 1999 → Nov 18 1999

ASJC Scopus subject areas

General Physics and Astronomy

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10.1063/1.373137

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@article{5edb712cb8da485d902fc8b58d27ef7e,

title = "Magnetic properties of self-assembled Co nanowires of varying length and diameter",

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.",

author = "H. Zeng and M. Zheng and R. Skomski and Sellmyer, {D. J.} and Y. Liu and L. Menon and S. Bandyopadhyay",

year = "2000",

month = may,

doi = "10.1063/1.373137",

language = "English (US)",

volume = "87",

pages = "4718--4720",

journal = "Journal of Applied Physics",

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publisher = "American Institute of Physics",

number = "9 II",

note = "44th Annual Conference on Magnetism and Magnetic Materials ; Conference date: 15-11-1999 Through 18-11-1999",

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TY - JOUR

T1 - Magnetic properties of self-assembled Co nanowires of varying length and diameter

AU - Zeng, H.

AU - Zheng, M.

AU - Skomski, R.

AU - Sellmyer, D. J.

AU - Liu, Y.

AU - Menon, L.

AU - Bandyopadhyay, S.

PY - 2000/5

Y1 - 2000/5

N2 - 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.

AB - 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.

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U2 - 10.1063/1.373137

DO - 10.1063/1.373137

M3 - Conference article

AN - SCOPUS:0001117736

SN - 0021-8979

VL - 87

SP - 4718

EP - 4720

JO - Journal of Applied Physics

JF - Journal of Applied Physics

IS - 9 II

T2 - 44th Annual Conference on Magnetism and Magnetic Materials

Y2 - 15 November 1999 through 18 November 1999

ER -

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

Abstract

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