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

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Brink, J. van den and Sawatzky, G.A. (2000) Non-conventional screening of the Coulomb interaction in low-dimensional and finite-size systems. Europhysics Letters, 50 (4). pp. 447-453. ISSN 0295-5075

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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.
Item Type:Article
Copyright:© 2000 Institute of Physics
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Link to this item:http://purl.utwente.nl/publications/61308
Official URL:http://dx.doi.org/10.1209/epl/i2000-00290-6
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