Universal features of the equation of state of metals
- 15 March 1984
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 29 (6), 2963-2969
- https://doi.org/10.1103/physrevb.29.2963
Abstract
The zero-temperature equation of state of metals, in the absence of phase transitions, is shown to be accurately predicted from zero-pressure data. Upon appropriate scaling of experimental pressure-volume data a simple universal relation is found. These results provide further experimental confirmation of the recent observation that the total-binding-energy—versus—separation relations for metals obey a universal scaling relation. Important to our results is a parameter , which is a measure of the anharmonicity of a crystal. This parameter is shown to be essential in predicting the equation of state. A simple formula is given which predicts the zero-temperature derivative of the bulk modulus with respect to pressure.
Keywords
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