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

J. van den Brink*, G.A Sawatzky

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

38 Citations (Scopus)

Abstract

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 languageEnglish
Pages (from-to)447-453
Number of pages7
JournalEurophysics Letters
Volume50
Issue number4
DOIs
Publication statusPublished - 2000

Keywords

  • BAND-GAP
  • C-60
  • PHOTOEMISSION
  • EXCITONS

Fingerprint

Dive into the research topics of 'Non-conventional screening of the Coulomb interaction in low- dimensional and finite-size systems'. Together they form a unique fingerprint.

Cite this