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

✍ Scribed by I. P. Zvyagin

Publisher
John Wiley and Sons
Year
2006
Tongue
English
Weight
478 KB
Volume
3
Category
Article
ISSN
1862-6351

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✦ Synopsis

Abstract

The frequency dependence of the hopping conductivity of dense arrays of semiconductor quantum dots of size $ \bar a $ substantially exceeding the edge‐to‐edge separation $ \bar w $ between the 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 deviations from universality related to the material structure is discussed. (Β© 2006 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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