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Ordered, Self-Organized Cobalt Nanodots in Co-Diamond-Like Carbon Thin Films

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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.

Keywords: COBALT; NANOCOMPOSITES; NANODOTS; SELF-ORGANIZATION; TRANSMISSION ELECTRON MICROSCOPY

Document Type: Research Article

DOI: http://dx.doi.org/10.1166/jnn.2006.213

Publication date: June 1, 2006

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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