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Structure and Electronic Properties of Diamond-Like Amorphous Carbon

Published online by Cambridge University Press:  22 February 2011

C. Z. Wang  and
K. M. Ho
C. Z. Wang
Affiliation:
Ames Laboratory and Department of Physics, Iowa State University, Ames, IA 50011
K. M. Ho
Affiliation:
Ames Laboratory and Department of Physics, Iowa State University, Ames, IA 50011
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Abstract

Amorphous carbon networks generated by quenching high-density liquid from hightemperature using a tight-binding molecular dynamics method are found to be dominated by tetrahedral bonding sites. The overall structural and electronic properties of these networks resemble those observed in experimental diamond-like amorphous carbon films produced by the mass-selected ion beam deposition technique. Our study shows that bonding and antibonding of π states associated with pairs and quartets of threefold “defected-atoms” embedded in the fourfold matrix yield a band gap of about 2 eV.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 349: Symposium T – Novel Forms of Carbon II , 1994 , 483
Copyright
Copyright © Materials Research Society 1994

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References

REFERENCES

[1] McKenzie, D. R., Muller, D., and Pailthorpe, B. A., Phys. Rev. Lett. 67, 773 (1991).Google Scholar
[2] For a review, see Robertson, J., Prog. Solid St. Chem. 21, 199 (1991).Google Scholar
[3] Veerasamy, V. S., Amaratunga, G. A. J., Milne, W. I., Hewitt, P., Fallon, P. J., McKenzie, D. R. and Davis, C. A., Diamond and Related Materials 2, 782 (1993).Google Scholar
[4] Gaskell, P. H., Saeed, A., Chieux, P., and McKenzie, D. R., Phys. Rev. Lett. 67, 1286 (1991).Google Scholar
[5] Veerasamy, V. S., Amaratunga, G. A. J., Davis, C. A., Timbs, A. E., Milne, W. I., and McKenzie, D. R., J. Phys: Condens. Matter 5 L169 (1993).Google Scholar
[6] Veerasamy, V. S., Yuan, J., Amaratunga, G. A. J., Milne, W. I., Gilkes, K. W. R., Weiler, M., and Brown, L. M., Phys. Rev. B, 48, 17954 (1993).Google Scholar
[7] Bacsa, W. S., Lannin, J. S., Pappas, D. L., and Cuomo, J. J., Phys. Rev. B, 47, 10931 (1993).Google Scholar
[8] Berger, S. D., McKenzie, D. R., and Martin, P. J., Phil. Mag. Lett. 57, 285 (1988).Google Scholar
[9] Kaukonen, H.-P. and Nieminen, R. M., Phys. Rev. Lett. 68, 620 (1992).Google Scholar
[10] Tersoff, J., Phys. Rev. B, 44, 12039 (1991).Google Scholar
[11] Kelires, P. C., Phys. Rev. Lett. 68, 1854 (1992).Google Scholar
[12] Robertson, J., Phil. Trans. R. Soc. Lond. A 342, 277 (1993).Google Scholar
[13] Frauenheim, Th., Blaudeck, P., Stephan, U., and Jungnickel, G., Phys. Rev. B, 48, 4823 (1993).Google Scholar
[14] Wang, C. Z. and Ho, K. M., Phys. Rev. Lett. 71, 1184 (1993).Google Scholar
[15] Wang, C. Z., Chan, C. T., and Ho, K. M., Phys. Rev. B, 39, 8592 (1989).Google Scholar
[16] Xu, C. H., Wang, C. Z., Chan, C. T., and Ho, K. M., J. Phys: Condens. Matter 4, 6047 (1992).Google Scholar
[17] Fahy, S. and Louie, S. G., Phys. Rev. B, 34, 1191 (1986).Google Scholar
[18] Zhang, B. L., Xu, C. H., Wang, C. Z., Chan, C. T., and Ho, K. M., Phys. Rev. B, 46, 7333 (1992)Google Scholar
[19] Wang, C. Z., Ho, K. M., Chan, C. T., Phys. Rev. Lett. 70, 611 (1993).Google Scholar
[20] Wang, C. Z., Ho, K. M., Chan, C. T., Phys. Rev. B, 47, 14835 (1993).Google Scholar
[21] Andersen, H. C., J. Chem. Phys. 72, 2384 (1980).Google Scholar
[22] Biswas, R., Grest, G. S., and Soukoulis, C. M., Phys. Rev. B, 36, 7437 (1987); I. Kwon, R. Biswas, G. S. Grest, and C. M. Soukoulis, ibid 41, 3678 (1990).Google Scholar
[23] Wang, C. Z. and Ho, K. M., J. Phys: Condens. Matter 6, L239 (1994).Google Scholar