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|Title:||Field theoretical treatment of plasma modes in coupled two-dimensional systems||Authors:||Sy, H.K.||Issue Date:||Jan-1987||Citation:||Sy, H.K. (1987-01). Field theoretical treatment of plasma modes in coupled two-dimensional systems. Solid State Communications 61 (4) : 245-247. ScholarBank@NUS Repository.||Abstract:||We investigate an assembly of two-dimensional electron systems, separated spatially but coupled by Coulomb interaction. The acoustic and the optical plasma modes are studied using a field theoretical method. It is found that a certain approximation in treating one class of diagrams gives an effective exchange potential equal to that calculated using the method of Kohn and Sham . For small wave-vector, expressions equivalent to Boltzmann equations are obtained. Numerical results are finally obtained for the dependence of the frequency on wave vector and densities of the electron systems. © 1987.||Source Title:||Solid State Communications||URI:||http://scholarbank.nus.edu.sg/handle/10635/96629||ISSN:||00381098|
|Appears in Collections:||Staff Publications|
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