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Asymptotic oscillations of the radial distribution function in a quasi‐crystalline model of liquids
Author(s) -
Medvedev N. N.,
Naberukhin Yu. I.
Publication year - 1977
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2220830206
Subject(s) - asymptote , radial distribution function , gaussian , lattice (music) , distribution function , distribution (mathematics) , statistical physics , physics , mathematics , thermodynamics , mathematical analysis , quantum mechanics , molecular dynamics , acoustics
The radial distribution function (RDF) behaviour at large R in a quasi‐crystalline model of liquids (crystal lattice with lattice sites smeared out by the Gaussian distribution) is studied by numerical calculations. RDF asymptotic oscillations are found to be describable by the Fisher formula obtained from general statistical laws, if the model is based on b.c.c. and f .c.c. lattices, and not to be describable by this formula for hexagonal close packing. It is also established that the parameters of experimental RDF asymptote for liquid argon differ from those for the three above‐mentioned lattices.