Abstract
THE electrical conduction mechanism in ultra-thin metallic films as formed by vacuum evaporation has been the subject of considerable experimentation, theoretical conjecture and analysis. Such films can exist as a planar array of discrete islands, typically some tens of Ångstroms across and similar distances apart, supported by a dielectric substrate such as glass. One of the important conduction processes occurring on application of an electric field across the aggregate of islands is quantum mechanical tunnelling of electrons between islands through the substrate as propounded by Neugebauer and Webb1, and it is this particular mode we are concerned with here.
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References
Neugebauer, C. A., and Webb, M. B., J. App. Phys., 33, 74 (1962).
Simmons, J. G., J. App. Phys., 34, 1793 (1963).
Hill, R. M., Proc. Roy. Soc., A, 309, 377 (1969).
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KIERNAN, R., STOPS, D. Tunnelling between Metallic Islands on a Dielectric Substrate. Nature 224, 907–908 (1969). https://doi.org/10.1038/224907a0
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DOI: https://doi.org/10.1038/224907a0
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