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

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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.

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Authors and Affiliations

  1. TFVS, Departement Natuurkunde, Universiteit Antwerpen-UIA, Universiteitsplein 1, 2610, Antwerpen, Wilrijk, Belgium

    K. J. Hameeuw, F. Brosens & J. T. Devreese

Authors
  1. K. J. Hameeuw
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  2. F. Brosens
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  3. J. T. Devreese
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Additional information

Received: 7 May 2003, Published online: 22 September 2003

PACS:

71.45.Gm Exchange, correlation, dielectric and magnetic response functions, plasmons - 77.22.Ch Permittivity (dielectric function) - 77.55.+f Dielectric thin films

J.T. Devreese: , jtd@uia.ua.ac.be

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Hameeuw, K.J., Brosens, F. & Devreese, J.T. Dynamical exchange effects in the dielectric function of the two-dimensional electron gas. Eur. Phys. J. B 35, 93–101 (2003). https://doi.org/10.1140/epjb/e2003-00259-3

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  • DOI: https://doi.org/10.1140/epjb/e2003-00259-3

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