Ordered, Self-Organized Cobalt Nanodots in Co-Diamond-Like Carbon Thin Films
Abstract:A formation process for ordered, self-organized cobalt (Co) nanodots in diamond-like carbon (DLC) thin films deposited by magnetron sputtering in a plasma-assisted Ar/CH4 discharge is presented. -Co dots ∼5 nm in diameter, separated by 1–2 nm DLC boundaries and arranged in hexagonal arrays were produced on Si substrates. The formation mechanism relies on a self-organization process which is based on surface energy minimization and local magnetic field interaction. The proposed plasma-assisted process presents a controlled and cost-effective bottom-up nanofabrication approach for the production of well-ordered magnetic nanodots based on self-organization.
Document Type: Research Article
Publication date: June 1, 2006
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