Dynamical exchange effects in the dielectric function of the two-dimensional electron gas

K. Hameeuw, F. Brosens and J. Devreese ()

The European Physical Journal B: Condensed Matter and Complex Systems, 2003, vol. 35, issue 1, 93-101

Abstract: Dynamical exchange interactions can be introduced in the dielectric function via a dynamic local field factor. We study the effects of this inclusion on both the static and the frequency dependent dielectric function of a two-dimensional electron gas, using the dynamic local field factor that we derived recently via the dynamical exchange decoupling method. The results are compared with the dielectric function in the Random Phase Approximation and with different dynamic and static approximations of the local field factor. Copyright Springer-Verlag Berlin/Heidelberg 2003

Date: 2003
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DOI: 10.1140/epjb/e2003-00259-3

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