Abstract:
Analysis of the experimental data on anomalous transport in disordered semiconductors reveals a universal behavior of the transient photocurrent, which indicates the self-similarity of the transport process. The kinetic equations of the process, which contain a time derivative of a fractional order α ∈ (0, 1), have been derived on the basis of the self-similarity principle. These equations satisfy the “correspondence principle”: in the limit α → 1, they are transformed to the normal-diffusion equations. The solutions of the equations with fractional derivatives are expressed in terms of stable densities and are in good agreement with the experimental data.
Citation:
V. V. Uchaikin, R. T. Sibatov, “Fractional differential kinetics of dispersive transport as the consequence of its self-similarity”, Pis'ma v Zh. Èksper. Teoret. Fiz., 86:8 (2007), 584–588; JETP Letters, 86:8 (2007), 512–516
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https://www.mathnet.ru/eng/jetpl889
https://www.mathnet.ru/eng/jetpl/v86/i8/p584
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