Journal
PHYSICA B-CONDENSED MATTER
Volume 394, Issue 1, Pages 111-114Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.physb.2007.02.022
Keywords
Gruneisen parameter; the second Gruneisen parameter; NaCl
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Three relations for the pressure or volume dependence of Gruneisen parameter have been reported in literatures by Fang, Nie, and Cui one after another. The validities of these relations are tested on NaCl in the range of pressure 0-30 GPa and at 300 K in this paper. It is shown that the calculated results given by the three equations are all in good agreement with Birch's experimental data at low pressures, but at high pressures, the differences between them increase with the increasing pressures. As far as the three relations are concerned, the one presented by Nie is better. (c) 2007 Elsevier B.V. All rights reserved.
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