Aufsatz
On the transition from localized to delocalized electronic states in divalent-metal clusters
Abstract
The transition from van der Waals to covalent bonding, which is expected to occur in divalent-metal clusters with increasing cluster size, is discussed. We propose a model which takes into account, within the same electronic theory, the three main competing contributions, namely the kinetic energy of the electrons, the Coulomb interactions between electrons, and the s \gdw p intraatomic transitions responsible for van der Waals like bonding. The model is solved by taking into account electron correlations using a generalized Gutzwiller approximation (slave boson method). The occurrence of electron localization is studied as a function of the interaction parameters and cluster size.
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Publikationen (Theoretische Physik II - Theoretische Festkörper- und Ultrakurzzeitphysik)Citation
@article{urn:nbn:de:hebis:34-2008070222435,
author={Garcia, Martin E. and Pastor, G. M. and Bennemann, K. H.},
title={On the transition from localized to delocalized electronic states in divalent-metal clusters},
year={1991}
}
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<resource xsi:schemaLocation="http://datacite.org/schema/kernel-2.2 http://schema.datacite.org/meta/kernel-2.2/metadata.xsd"> 2008-07-02T09:14:28Z 2008-07-02T09:14:28Z 1991 0178-7683 0722-3277 urn:nbn:de:hebis:34-2008070222435 http://hdl.handle.net/123456789/2008070222435 614842 bytes application/pdf eng Urheberrechtlich geschützt https://rightsstatements.org/page/InC/1.0/ 530 On the transition from localized to delocalized electronic states in divalent-metal clusters Aufsatz The transition from van der Waals to covalent bonding, which is expected to occur in divalent-metal clusters with increasing cluster size, is discussed. We propose a model which takes into account, within the same electronic theory, the three main competing contributions, namely the kinetic energy of the electrons, the Coulomb interactions between electrons, and the s \gdw p intraatomic transitions responsible for van der Waals like bonding. The model is solved by taking into account electron correlations using a generalized Gutzwiller approximation (slave boson method). The occurrence of electron localization is studied as a function of the interaction parameters and cluster size. open access Z. Phys. D 19, 219 - 221 (1991) Garcia, Martin E. Pastor, G. M. Bennemann, K. H. Extern 36.40.+d </resource>
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