Dynamical correlations in Coulomb drag effect
Date
2003Source Title
Physica E: Low-dimensional Systems and Nanostructures
Print ISSN
1386-9477
Publisher
Elsevier
Volume
18
Issue
1-3
Pages
165 - 166
Language
English
Type
Conference PaperItem Usage Stats
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Abstract
Motivated by recent Coulomb drag experiments in pairs of low-density two-dimensional (2D) electron gases, we investigate the influence of correlation effects on the interlayer drag rate as a function of temperature. We use the self-consistent field method to calculate the intra and interlayer local-field factors Gij(q,T) which embody the short-range correlation effects. We calculate the transresistivity using the screened effective interlayer interactions that result from incorporating these local-field factors within various approximation schemes. Our results suggest that dynamic (frequency dependent) correlations play an important role in enhancing the Coulomb drag rate.
Keywords
CorrelationsCoulomb drag effect
Effective interactions
Correlation methods
Frequencies
Electron gas