Stability of the Hard-Sphere Icosahedral Quasi-Lattice
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1995
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American Physical Society
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Abstract
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 hard-sphere crystal structures. Our results agree with recent findings by McCarley and Ashcroft [Phys.Rev. B 49, 15 600 (1994)] carried out using the modified weighted density approximation.
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© 1995 The American Physical Society. We thank R. Brito and J. M. R. Parrondo for useful discussions. H. M. Cataldo has been supported by Grants Nos. PID 97/93 from Consejo Nacional de Investigaciones Científicas y Técnicas (Argentina) and EX100 from Universidad de Buenos Aires. C. F. Tejero acknowledges the DGICYT, Spain (Grant No. PB91-0378) for its financial support