TITLE

Enhanced coercive field of cobalt film deposited on noodle-like porous silicon substrates

AUTHOR(S)
Sun, Z. G.; Akinaga, H.
PUB. DATE
May 2005
SOURCE
Applied Physics Letters;5/2/2005, Vol. 86 Issue 18, p181904
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Cobalt films were deposited on special porous silicon substrate composing of nanosized noodle-like channels with large length-to-axis ratio. Modulation effects due to the substrate on microstructure, domain structures, and magnetic properties of the Co films were studied. Magnetic images and hysteresis loops indicate that a large uniaxial in-plane shape anisotropy is induced in the magnetic cobalt films. Accordingly, the magnetization of the magnetic cobalt films lies in the film plane, along the noodle direction. The coercivity of the cobalt films is enhanced as compared to reference cobalt film that was grown on a flat silicon substrate.
ACCESSION #
17164729

 

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