Argon module background
The properties of monatomic liquids was the first problem tacked by molecular dynamics simulations. There is a great deal of data on liquid argon including thermodynamic data and structure data from x-ray diffraction and neutron scattering. Please read three of the classic papers in this field.1. A. Rahman "Correlations in the Motion of Atoms in Liquid Argon" Physical Review 1964 Vol. 136 Number 2A Pages 405-411
2. W. B. Street and L. A. K. Staveley "Experimental Study of the equation of State of Liquid Argon" J. Chem. Phys. 1969 Vol. 50 pages 2302-2307
3. L. Verlet "Computer Experiments on Classical Fluids. I. Thermodynamical Properties of Lennard-Jones Molecules Physical Review 1967 Vol. 159 pages 98-103