Effect of Size Dispersity On the Melting Transition

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dc.creatorSadr-Lahijany, M. Reza
dc.creatorRay, Purusattam
dc.creatorHarrington, Stephen T.
dc.creatorStanley, H. Eugene
dc.date1997-03-05
dc.date.accessioned2026-07-07T09:11:36Z
dc.date.available2026-07-07T09:11:36Z
dc.descriptionWe present a molecular dynamics simulation study of the liquid-solid transition in a two dimensional system consisting of particles of two different sizes interacting via a truncated Lennard-Jones potential. We work with equal number of particles of each kind and the dispersity $Δ$ in the sizes of the particles is varied by changing the ratio of the particle sizes only. For the monodisperse case ($Δ= 0$) and for small values of $Δ$, we find a first order liquid-solid transition on increasing the volume fraction $ρ$ of the particles . As we increase $Δ$, the first-order transition coexistence region weakens gradually and completely disappears at high dispersities around $Δ= 0.10$ . At these values of dispersity the high density phase lacks long range translational order but possesses orientational order with a large but finite correlation length. The consequences of this effect of dispersity on the glass transition and on the melting transition in general are discussed.
dc.description5 pages, 7 postscript figures. To appear in the proceedings of 1996 MRS meeting in Boston. Includes artmrs.sty TeX sytle file
dc.identifierhttps://arxiv.org/abs/cond-mat/9703054
dc.identifierhttp://arxiv.org/abs/cond-mat/9703054
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/151734
dc.subjectMaterials Science
dc.subjectStatistical Mechanics
dc.titleEffect of Size Dispersity On the Melting Transition
dc.typetext

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