  The choice of appropriate interaction models is among the major disadvantages
of conventional methods such as molecular dynamics and Monte Carlo simulations.
On the other hand, the so-called reverse Monte Carlo (RMC) method, based on
experimental data, can be applied without any interatomic and/or intermolecular
interactions. The RMC results are accompanied by artificial satellite peaks. To
remedy this problem, we use an extension of the RMC algorithm, which introduces
an energy penalty term into the acceptance criteria. This method is referred to
as the hybrid reverse Monte Carlo (HRMC) method. The idea of this paper is to
test the validity of a combined potential model of coulomb and Lennard-Jones in
a fluoride glass system BaMnMF_{7} (M=Fe,V) using HRMC method. The results show
a good agreement between experimental and calculated characteristics, as well
as a meaningful improvement in partial pair distribution functions. We suggest
that this model should be used in calculating the structural properties and in
describing the average correlations between components of fluoride glass or a
similar system. We also suggest that HRMC could be useful as a tool for testing
the interaction potential models, as well as for conventional applications.
