Second-moment interatomic potential for Cu-Au alloys based on total-energy calculations and its application to molecular-dynamics simulations

dc.contributor.authorPapanicolaou, N. I.en
dc.contributor.authorKallinteris, G. C.en
dc.contributor.authorEvangelakis, G. A.en
dc.contributor.authorPapaconstantopoulos, D. A.en
dc.contributor.authorMehl, M. J.en
dc.date.accessioned2015-11-24T18:35:47Z
dc.date.available2015-11-24T18:35:47Z
dc.identifier.issn0953-8984-
dc.identifier.urihttps://olympias.lib.uoi.gr/jspui/handle/123456789/17136
dc.rightsDefault Licence-
dc.subjectembedded-atom-methoden
dc.subjecttransition-metalsen
dc.subjectnoble-metalsen
dc.subjectstructural-propertiesen
dc.subjectag-auen
dc.subjectsurfaceen
dc.subjectmodelen
dc.subjectreconstructionen
dc.subjecttemperatureen
dc.subjectdisorderen
dc.titleSecond-moment interatomic potential for Cu-Au alloys based on total-energy calculations and its application to molecular-dynamics simulationsen
heal.abstractWe have evaluated interatomic potentials of Cu, An and Cu-Au Lit ordered alloys in the framework of the second-moment approximation to the tight-binding theory by fitting to the volume dependence of the total energy of these materials computed by first-principles augmented-plane-wave calculations. We have applied this scheme to calculate the bulk modulus and elastic constants of the pure elements and alloys and we have obtained a good agreement with experiment. We also have performed molecular-dynamics simulations at various temperatures, deducing the temperature dependence of the lattice constants and the atomic mean square displacements, as well as the phonon density of states and the phonon-dispersion curves of the ordered alloys. A Satisfactory accuracy was obtained, comparable to previous works based on the same approximation, but resulting from fitting to various experimental quantities.en
heal.accesscampus-
heal.fullTextAvailabilityTRUE-
heal.identifier.secondary<Go to ISI>://000077677000018-
heal.identifier.secondaryhttp://iopscience.iop.org/0953-8984/10/48/018/pdf/0953-8984_10_48_018.pdf-
heal.journalNameJournal of Physics-Condensed Matteren
heal.journalTypepeer reviewed-
heal.languageen-
heal.publicationDate1998-
heal.recordProviderΠανεπιστήμιο Ιωαννίνων. Σχολή Επιστημών και Τεχνολογιών. Τμήμα Βιολογικών Εφαρμογών και Τεχνολογιώνel
heal.typejournalArticle-
heal.type.elΆρθρο Περιοδικούel
heal.type.enJournal articleen

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