Pressure transitions of alkali halides and the Born-Mayer model

Rao, K. J. ; Rao, C. N. R. (1967) Pressure transitions of alkali halides and the Born-Mayer model Proceedings of the Physical Society, 91 (3). pp. 754-758. ISSN 0370-1328

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Official URL: http://iopscience.iop.org/0370-1328/91/3/328?fromS...

Related URL: http://dx.doi.org/10.1088/0370-1328/91/3/328

Abstract

The Born-Mayer model with four repulsive parameters has been employed for the study of the pressure transitions in alkali halides. Satisfactory solutions can be obtained only by multiplying the van der Waals term by K, where K>1 for most alkali halides It has been shown that the ratio of ρ21 is equal to the structural constant, a=rii/rij The three- and two-parameter equations are thus special cases of the four-parameter equation and b2 obtained is proportional to (1 25 rl2+0 75 rj2)/2.

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