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Pis'ma v Zhurnal Èksperimental'noi i Teoreticheskoi Fiziki, 2012, Volume 95, Issue 3, Pages 153–158
(Mi jetpl2433)
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This article is cited in 17 scientific papers (total in 17 papers)
CONDENSED MATTER
Anomalous temperature dependence of diffusion in crystals in time-periodic external fields
I. G. Marchenkoa, I. I. Marchenkob a Kharkov Institute of Physics and Technology of Ukraine Academy of Sciences
b Khar'kov Polytechnical University
Abstract:
The features of the diffusion of particles under the action of an external periodic force in a crystal lattice have been studied using computer simulation. It has been shown that the temperature dependence of the diffusion coefficients is anomalous. Diffusion can increase with a decrease in the temperature in some temperature intervals. The positions and widths of these intervals depend on the frequency of the external field. It has been found that the diffusion coefficient in the presence of a periodic external field can be more than nine orders of magnitude larger than the usual diffusion coefficient at the same temperature. The physical reasons for this anomaly have been analyzed.
Received: 21.10.2011 Revised: 08.12.2011
Citation:
I. G. Marchenko, I. I. Marchenko, “Anomalous temperature dependence of diffusion in crystals in time-periodic external fields”, Pis'ma v Zh. Èksper. Teoret. Fiz., 95:3 (2012), 153–158; JETP Letters, 95:3 (2012), 137–142
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https://www.mathnet.ru/eng/jetpl2433 https://www.mathnet.ru/eng/jetpl/v95/i3/p153
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Abstract page: | 312 | Full-text PDF : | 61 | References: | 49 | First page: | 4 |
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