Character of the Pair Interaction in Solid and Gaseous
- 8 April 1974
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 32 (14), 758-761
- https://doi.org/10.1103/physrevlett.32.758
Abstract
Existing theoretical pair potentials are investigated. We develop a spherically symmetric potential applicable to solid . It yields a ground-state energy of -98.7 K (experimental values range from -93.5 to -101 K). Pressure-volume data are also in excellent agreement with experiment between 0 and 25 kbar. Second virial coefficients using this potential are consistently too low. When an anisotropic pair potential is used, agreement becomes very good.
Keywords
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