# Fomin potential

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The **Fomin potential** was firstly introduced as ^{[1]} (Eq. 2):

where is the intermolecular pair potential, is the distance between site 1 and site 2, and . is the diameter of the hard core, is the width of the repulsive shoulder, is the height of the shoulder. As such, this model can be viewed as a softened square shoulder model.

Later it was generalized to the form ^{[2]} :

By varying coefficients one can add repulsive shoulders or attractive wells to the potential.

## References[edit]

- ↑ Yu. D. Fomin, N. V. Gribova, V. N. Ryzhov, S. M. Stishov, and Daan Frenkel "Quasibinary amorphous phase in a three-dimensional system of particles with repulsive-shoulder interactions", Journal of Chemical Physics
**129**064512 (2008) - ↑ Yu. D. Fomin, E. N. Tsiok and V. N. Ryzhov, "Complex phase behavior of the system of particles with smooth potential with repulsive shoulder and attractive well", Journal of Chemical Physics
**134**044523 (2011)