New Potential Function for Alkali Halide Molecules

Abstract

A new potential-energy function has been suggested for the alkali halide molecules, U=(−e2/r)+Pexp(−kr2),where P and k are constants. Values of αe, ωeχe, and the ionic binding energy Di have been derived for the following three functions: (1) simple Born-Mayer potential, (2) Rittner potential, and (3) the above suggested potential. The results obtained with the new function are much better than those obtained with the Born-Mayer potential, but slightly inferior to those obtained with the Rittner potential.