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dc.date.accessioned2008-07-02T09:14:28Z
dc.date.available2008-07-02T09:14:28Z
dc.date.issued1991
dc.identifier.issn0178-7683
dc.identifier.issn0722-3277
dc.identifier.uriurn:nbn:de:hebis:34-2008070222435
dc.identifier.urihttp://hdl.handle.net/123456789/2008070222435
dc.format.extent614842 bytes
dc.format.mimetypeapplication/pdf
dc.language.isoeng
dc.subject.ddc530
dc.titleOn the transition from localized to delocalized electronic states in divalent-metal clusterseng
dc.typeAufsatz
dcterms.abstractThe 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.eng
dcterms.accessRightsopen access
dcterms.bibliographicCitationZ. Phys. D 19, 219 - 221 (1991)
dcterms.creatorGarcia, Martin E.
dcterms.creatorPastor, G. M.
dcterms.creatorBennemann, K. H.
dc.description.etExternger
dc.subject.pacs36.40.+deng


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