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Nonvolatile Memory Effects in Doped Tetrahedral Amorphous Carbon Thin Films

Published online by Cambridge University Press:  10 February 2011

E. G. Gerstner  and
D. R. Mckenzie
E. G. Gerstner
Affiliation:
School of Physics, University of Sydney, New South Wales 2006, Australia. Phone: (612) 9351 2627, Fax: (612) 9351 7725, email: [email protected]
D. R. Mckenzie
Affiliation:
School of Physics, University of Sydney, New South Wales 2006, Australia. Phone: (612) 9351 2627, Fax: (612) 9351 7725, email: [email protected]
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Abstract

Much interest has been shown in the use of tetrahedral amorphous carbon (ta-C) deposited by filtered cathodic arc as an inexpensive, easily produced, wide band-gap semiconductor in the fabrication of electronic devices. There has, however, been limited success in producing devices with properties that might make its use in electronic applications commercially viable, which in part may be due to the high density of electronic trap states as reflected in ta-C's rather high ESR signal of ∼ 1020 spin/g. Recent results at the University of Sydney suggest, however, that a new range of possibilities exist in the utilisation of these traps as a means of producing nonvolatile digital information storage. Devices with write times of 100 μs, read times of 100 ns, and effective memory retention times approaching 1 year, have been fabricated.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 498: Symposium AA – Covalently Bonded Disordered Thin-Film Materials , 1997 , 121
Copyright
Copyright © Materials Research Society 1998

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References

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