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Дата изменения: Sat Oct 14 15:39:44 2006
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Generalized pair approximation in the description of ate AC conductivity of a dense disordered array of quantum dots The paper is published in Phys. stat. sol. (c) 3, 300-303 (2006).

Generalized pair approximation in the description of ate AC conductivity of a dense disordered array of quantum dots

I.P. Zvyagin

The frequency dependence of the hopping conductivity of dense arrays of semiconductor quantum dots of size a substantially exceeding the edge-to-edge separation w between neighboring quantum dots is considered. It is shown that at low frequencies in a wide frequency range the conductivity obeys a fractional power law and its magnitude depends on the structural characteristics of the material. The possibility of the deviation from universality related to the material structure is discussed.


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