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Phase changes in icosahedral 54-, 55-, 56-atom platinum clusters

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dc.contributor.author Sebetçi, Ali
dc.contributor.author Güvenç, Ziya Burhanettin
dc.contributor.author Kökten, Hatice
dc.date.accessioned 2021-12-14T10:39:16Z
dc.date.available 2021-12-14T10:39:16Z
dc.date.issued 2004-09
dc.identifier.citation Sebetçi, Ali; Güvenç, Ziya Burhanettin; Kökten, Hatice (2004). "Phase changes in icosahedral 54-, 55-, 56-atom platinum clusters", International Journal of Modern Physics C, Vol. 15, No. 7, pp. 981-988. tr_TR
dc.identifier.issn 0129-1831
dc.identifier.uri http://hdl.handle.net/20.500.12416/4963
dc.description.abstract Using the Voter and Chen version of an embedded-atom model, derived by fitting simultaneously to experimental data both the diatomic molecule and bulk platinum, we have studied the melting behavior of free, icosahedral, 54-, 55- and 56-atom platinum clusters in the molecular dynamics simulation technique. We present an atom-resolved analysis method that includes physical quantities such as the root-mean-square bond-length fluctuation and coordination number for individual atoms as functions of temperature. The effect of a central atom in the icosahedral structure to the melting process is discussed. The results show that the global minimum structures of the 54-, 55- and 56-atom Pt clusters do not melt at a specific temperature, rather, melting processes take place over a finite temperature range. The heat capacity peaks are not delta-functions, but instead remain finite. An ensemble of clusters in the melting region is a mixture of solid-like and liquid-like clusters. tr_TR
dc.language.iso eng tr_TR
dc.relation.isversionof 10.1142/S0129183104006431 tr_TR
dc.rights info:eu-repo/semantics/closedAccess tr_TR
dc.subject Pt Clusters tr_TR
dc.subject Melting tr_TR
dc.subject Molecular Dynamics tr_TR
dc.subject Embedded Atom Method tr_TR
dc.subject Icosahedron tr_TR
dc.title Phase changes in icosahedral 54-, 55-, 56-atom platinum clusters tr_TR
dc.type article tr_TR
dc.relation.journal International Journal of Modern Physics C tr_TR
dc.identifier.volume 15 tr_TR
dc.identifier.issue 7 tr_TR
dc.identifier.startpage 981 tr_TR
dc.identifier.endpage 988 tr_TR
dc.contributor.department Çankaya Üniversitesi, Mühendislik Fakültesi, Bilgisayar Mühendisliği Bölümü tr_TR


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