Stability of a hard-sphere binary quasicrystal
نویسندگان
چکیده
منابع مشابه
Binary hard-sphere fluids near a hard wall
By using the Rosenfeld density functional, we determine the number density profiles of both components of binary hard-sphere fluids close to a planar hard wall as well as the corresponding excess coverage and surface tension. The comparison with published simulation data demonstrates that the Rosenfeld functional, both its original version and sophistications thereof, is superior to previous ap...
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The stability of the hard-sphere icosahedral quasilattice is analyzed using the differential formulation of the generalized effective liquid approximation. We find that the icosahedral quasilattice is metastable with respect to the hardsphere crystal structures. Our results agree with recent findings by McCarley and Ashcroft [Phys. Rev. B 49, 15600 (1994)] carried out using the modified weighte...
متن کاملPhase diagram of highly asymmetric binary hard-sphere mixtures.
We study the phase behavior and structure of highly asymmetric binary hard-sphere mixtures. By first integrating out the degrees of freedom of the small spheres in the partition function we derive a formal expression for the effective Hamiltonian of the large spheres. Then using an explicit pairwise (depletion) potential approximation to this effective Hamiltonian in computer simulations, we de...
متن کاملPhase Behavior and Structure of Binary Hard-Sphere Mixtures
By integrating out the degrees of freedom of the small spheres in a binary mixture of large and small hard spheres, we derive an explicit effective Hamiltonian for the large spheres. Using the two-body (depletion potential) contribution to this effective Hamiltonian in simulations, we find stable fluid-solid and both metastable fluid-fluid and solid-solid coexistence in a mixture with size rati...
متن کاملTheory of asymmetric nonadditive binary hard-sphere mixtures.
It is shown that the formal procedure of integrating out the degrees of freedom of the small spheres in a binary hard-sphere mixture works equally well for nonadditive as it does for additive mixtures. For highly asymmetric mixtures (small size ratios) the resulting effective Hamiltonian of the one-component fluid of big spheres, which consists of an infinite number of many-body interactions, s...
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ژورنال
عنوان ژورنال: Philosophical Magazine B
سال: 1999
ISSN: 1364-2812,1463-6417
DOI: 10.1080/13642819908218325