ANALYSIS OF PRESSURE-VOLUME RELATIONSHIP USING INTERATOMIC POTENTIAL FUNCTIONS

摘要

We present an analysis for the pressure-volume relationship of solids viz. Ne, Ar, Al, Cu, LiH, and MgO using interatomic potential functions due to Morse, Rydberg, and Davydov. The formulations for P-V relationship have been obtained using these potential functions. The results for pressure as a function of volume are determined up to a compression of V/V_0 = 0.5 for each solid. The results are compared with the corresponding values obtained from the Shanker equation and the Hama-Suito equation of state.