Please use this identifier to cite or link to this item: https://olympias.lib.uoi.gr/jspui/handle/123456789/14159
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dc.contributor.authorCole, M. W.en
dc.contributor.authorGergidis, L. N.en
dc.contributor.authorMcNutt, J. P.en
dc.contributor.authorVelegol, D.en
dc.contributor.authorKim, H. Y.en
dc.contributor.authorBond, Z. K.en
dc.date.accessioned2015-11-24T17:35:41Z-
dc.date.available2015-11-24T17:35:41Z-
dc.identifier.issn1934-2608-
dc.identifier.urihttps://olympias.lib.uoi.gr/jspui/handle/123456789/14159-
dc.rightsDefault Licence-
dc.subjectvan der waalsen
dc.subjectcolloidsen
dc.subjectnanoparticlesen
dc.subjectchainsen
dc.subjectpolarization catastropheen
dc.subjectmodelen
dc.titleMany-body van der Waals forces involving chainsen
heal.typejournalArticle-
heal.type.enJournal articleen
heal.type.elΆρθρο Περιοδικούel
heal.identifier.primaryDoi 10.1117/1.3427144-
heal.identifier.secondary<Go to ISI>://000278050300001-
heal.languageen-
heal.accesscampus-
heal.recordProviderΠανεπιστήμιο Ιωαννίνων. Σχολή Θετικών Επιστημών. Τμήμα Μηχανικών Επιστήμης Υλικώνel
heal.publicationDate2010-
heal.abstractVan der Waals (VDW) forces arise from quantum mechanical fluctuations of local charge densities. Whereas computing VDW interactions between two atoms requires only 2-body interactions, by definition, computing interactions between macroscopic bodies required multi-body interactions, where the presence of a third atom affects how any two atoms interact, and a fourth atom affects the first three, and so on. Often, 3-body interactions have been found to be small, and 4-body and higher interactions are almost always neglected in calculating interactions between atoms. But is it possible that 4-body and higher order interactions can actually be more important than 3-body interactions, and indeed comparable to 2-body interactions? We explored the following question: how important is the sum of 4-body and higher order interactions? A set of problems involving finite and infinite chains was explored numerically and analytically, including a single chain, a pair of parallel, long chains and a two-dimensional array of long, parallel chains. The "coupled dipole method" was used, providing a type of "nanoscale Lifshitz theory" for calculations of nanoscale VDW interactions. Calculations were made for the static polarizability, as well as the VDW interaction between chains. This latter energy was compared with that found by summing 2-body interactions for the chains. It was found that when a "coupling constant"., which is the polarizability per unit volume of the material, is large, then the sum of 4-body and higher order interactions dominates both the 2-body and the 3-body interactions. In addition, it was found that for all geometries examined, a divergence of the polarizability and a dynamical energy instability occur simultaneously when nu reaches a limiting value nu(max), giving a well-known polarization catastrophe.en
heal.journalNameJournal of Nanophotonicsen
heal.journalTypepeer reviewed-
heal.fullTextAvailabilityTRUE-
Appears in Collections:Άρθρα σε επιστημονικά περιοδικά ( Ανοικτά)

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