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dc.contributor.authorTanatar, Bilalen_US
dc.contributor.authorDavoudi, B.en_US
dc.date.accessioned2016-02-08T10:34:50Z
dc.date.available2016-02-08T10:34:50Z
dc.date.issued2001en_US
dc.identifier.issn0163-1829
dc.identifier.urihttp://hdl.handle.net/11693/24819
dc.description.abstractWe study the effects of dynamic correlations on the ground-state properties of a double-layer two-dimensional electron gas within the quantum Singwi-Tosi-Land-Sjölander theory (STLS). The intralayer and interlayer static structure factors, the pair-correlation functions, and the wave vector and frequency-dependent local-field factors have been calculated for a range of electron densities and layer separations. We find that the local-field factors have an oscillatory frequency dependence and the magnitude of interlayer local-field factors is about an order of magnitude smaller than that of the intralayer. Our results are compared with the random-phase approximation and the static STLS approximation to assess the importance of dynamical correlations. We also calculate the dispersion relations for the optical and acoustic plasmons and the damping of these modes to compare them with other mean-field theories, and we comment on the relevance of our results to the recent experiments.en_US
dc.language.isoEnglishen_US
dc.source.titlePhysical Review B - Condensed Matter and Materials Physicsen_US
dc.subjectAcousticsen_US
dc.subjectCorrelation functionen_US
dc.subjectDensityen_US
dc.subjectDispersionen_US
dc.subjectElectronen_US
dc.subjectMolecular dynamicsen_US
dc.subjectOscillationen_US
dc.subjectWaveformen_US
dc.titleDynamic correlations in double-layer electron systemsen_US
dc.typeArticleen_US
dc.departmentDepartment of Physicsen_US
dc.citation.epage165328-10en_US
dc.citation.volumeNumber63en_US
dc.citation.issueNumber165328-1en_US
dc.publisherThe American Physical Societyen_US
dc.contributor.bilkentauthorTanatar, Bilal


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