Electron and Spin Correlations in Semiconductor Heterostructures: Quantum Singwi-Tosi-Land-Sjolander Theory

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dc.creatorSon, Nguyen Thanh
dc.creatorKhanh, Nguyen Quoc
dc.date2005-08-04
dc.date.accessioned2026-07-07T03:06:12Z
dc.date.available2026-07-07T03:06:12Z
dc.descriptionWe apply the quantum Singwi-Tosi-Land-Sjolander (QSTLS) theory for a study of many-body effects in the quasi-two-dimensional (Q2D) electron liquid (EL) in GaAs/AlxGa1-xAs heterojunctions. The effect of the layer thickness is included through a variational approach. We have calculated the density, spin-density static structure factors, spin-dependent pair distribution functions (PDF) and compared our results with those of two-dimensional (2D) EL given in earlier papers. Using the static structure factors (SSF) we have calculated various dynamic correlation functions such as spin-dependent local-field factors (LFF) and effective potentials of the Q2D EL. We have also calculated the inverse static dielectric function of the 2D and Q2D EL using different approximations. We find that the effect of finite thickness on the dielectric function is remarkable and at the intermediate values of wave number q there is a significant difference between the QSTLS and STLS results.
dc.description13 pages, 10 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0508121
dc.identifierhttp://arxiv.org/abs/cond-mat/0508121
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/26722
dc.subjectMesoscale and Nanoscale Physics
dc.titleElectron and Spin Correlations in Semiconductor Heterostructures: Quantum Singwi-Tosi-Land-Sjolander Theory
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