Abstract
AbstractThe effect is investigated of recently calculated van der Waals potentials and new ultrasonic elastic data on thermal energy, crystal binding energy, and compressibility of alkali halide crystals within the framework of Hildebrand and Mie‐Grüneisen equations of state. Recent experimental data on the compression of LiF crystal are compared with the results calculated in the present work. It is found that the Hildebrand equation of state using an exponential form alongwith the vdW interactions yields better agreement with experimental data than those obtained from other potential models based on an inverse power form or the Mie‐Grüneisen equation of state.
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