Abstract
The thermionic emission current from a metal cathode possessing a nanocrystalline (fractal) structure is calculated within the framework of a model assuming that thermoelectrons form a nondegenerate gas with an arbitrary dimension parameter, which characterizes the density and fractal properties of the gas. A method is proposed for determining the fractal dimension from the temperature dependence of the thermionic emission current.
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S. Sh. Rekhviashvili, Pis’ma Zh. Tekh. Fiz. 30(22), 65 (2004) [Tech. Phys. Lett. 30, 959 (2004)].
N. B. Brandt and S. M. Chudinov, Electrons and Phonons in Metals (Mosk. Gos. Univ., Moscow, 1990), pp. 93–97; pp. 233–240 [in Russian].
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Ch. Kittel, Thermal Physics (Wiley, New York, 1973).
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Original Russian Text © S.Sh. Rekhviashvili, 2006, published in Pis’ma v Zhurnal Tekhnicheskoĭ Fiziki, 2006, Vol. 32, No. 3, pp. 62–66.
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Rekhviashvili, S.S. Thermionic emission from nanocrystalline cathodes. Tech. Phys. Lett. 32, 123–125 (2006). https://doi.org/10.1134/S1063785006020106
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DOI: https://doi.org/10.1134/S1063785006020106