Stability of a hard-sphere binary quasicrystal

Details Stability of a hard-sphere binary quasicrystal Stability of a hard-sphere binary quasicrystal

1998-11-26

arxiv.org/abs/cond-mat/9811378v2

Phil. Mag. B 79, 1603 (1999)

Physics

Condensed Matter

Materials Science

14 pages, 6 eps figures included. Revised version to appear in Phil. Mag. B

Scientific paper

10.1080/014186399256439

The stability of a quasicrystalline structure, recently obtained in a molecular-dynamics simulation of rapid cooling of a binary melt, is analyzed for binary hard-sphere mixtures within a density-functional approach. It is found that this quasicrystal is metastable relative to crystalline and fluid phases for diameter ratios above 0.83. Such trend is partially reversed for lower diameter ratios, since the quasicrystal becomes stable with respect to the crystal but does not reach a coexistence with the fluid.

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