Born treatment of the phase transitions of alkali halides employing new van der Waals coefficients

Abstract

Satisfactory solutions have been obtained for the phase transitions of alkali halides by employing the Born-Mayer model with the recently revised van der Waals coefficients. These new coefficients for the most part eliminate the use of high van der Waals term multiplicants K>1 as required earlier by Rao and co-workers when Mayer's coefficients were employed; there appears to be need for increased van der Waals terms in the Born-Mayer description of alkali halides.