Magnetic properties of self-assembled Co nanowires of varying length and diameter
By H. Zeng, M. Zheng, R. Skomski, D. Sellmyer, Yi Liu, L. Menon, Supriyo Bandyopadhyay. Journal of Applied Physics, 2000
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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.
Subfields: Atomic and Molecular Physics, and Optics, Materials Chemistry
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In Atomic and Molecular Physics, and Optics
In Materials Chemistry
Citations in the corpus
- Nanowires: properties, applications and synthesis via porous anodic aluminium oxide template (2007, background): “…Au (Hornyak et al 1997; Zhang et al 2001) and different transition metals such as Fe (Al Mawlawi et al 1991; Peng et al 2000), Co (Ferré et al 1997; Zeng et al 2000), Ni (Ferré et al 1997; Sun et al Nanowires: properties, applications and synthesis 287 1999) and their alloys can be fabricated by…”