12-15 July 2011
Saint George Hotel
Africa/Johannesburg timezone

Carbon structures generated by carbon ion implantation into FeCr thin films

15 Jul 2011, 12:00


Oral Presentation Track F - Applied and Industrial Physics Applied


Dr Daniel Wamwangi (wits university)


We present results on the synthesis of precise and thickness controlled carbon structures using ion implantation into thin films of a typical metal catalyst, for Schottky contacts and spintronic applications. Thin films of FeCr on a silicon substrate was prepared using magnetron sputtering and then implanted with carbon ions at controlled thicknesses close to the surface at elevated temperatures (600C) in an attempt to catalyse the formation of carbon nanotubes. The energy and the dose of the carbon ions to be deposited close to the surface was determined from SRIM simulations. The nature and quality of the carbon nanotubes was probed using Raman, electrical and magnetic measurements.

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Primary author

Dr Daniel Wamwangi (wits university)


Prof. D Comins (wits university) Dr Mervin Naidoo (wits university) Mr Rudolph Erasmus (wits university)

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