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Erschienen in:
01.09.2015
Preparation and magnetoresistance behavior of nickel nanoparticles embedded in hydrogenated carbon film
Erschienen in: Journal of Materials Science: Materials in Electronics | Ausgabe 9/2015
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Abstract
Nickel nanoparticles arrays, growth into hydrogenated amorphous carbon, were prepared by means of RF-plasma enhanced chemical vapor deposition and RF-sputtering co-deposition from acetylene and a nickel target. The resulting nanocomposite films were characterized by X-ray diffraction and atomic force microscopy, and their magnetic responses and magnetoresistance behavior were investigated as a function of the exciting magnetic field and the Ni nanoparticles content, which was conveniently controlled by adjusting the deposition time. These physical properties were explained by a combination of hopping and tunneling effects.