Non-conventional screening of the Coulomb interaction in low-dimensional and finite-size systems

J. van den Brink, G.A. Sawatzky

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31 Citations (Scopus)


We study the screening of the Coulomb interaction in non-polar systems by polarizable atoms. We show that in low dimensions and small finite-size systems this screening deviates strongly from that conventionally assumed. In fact in one dimension the short-range interaction is strongly screened and the long-range interaction is anti-screened thereby strongly reducing the gradient of the Coulomb interaction and therefore the correlation effects. We argue that this effect explains the success of mean-field single-particle theories for large molecules.
Original languageUndefined
Pages (from-to)447-453
Number of pages7
JournalEurophysics letters
Issue number4
Publication statusPublished - 2000


  • METIS-128761
  • IR-61308

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