  A modification of an embedded-atom method (EAM)-type potential is proposed
for a quantitative description of equilibrium and non-equilibrium properties of
metal systems within the molecular-dynamics framework. The modification
generalizes the previously developed linear correction to EAM-type potentials
[Sushko et al., J. Phys.: Condens. Matter \textbf{28}, 145201 (2016)] and
asymptotically approaches zero at large interatomic distances. A general
procedure for constructing this modification is outlined and its relation to
the linear correction is elaborated. To benchmark this procedure, we examine
the melting phase transition and several equilibrium properties of nanosystems
made of silver, gold, and titanium. The simulations performed with the modified
potential predict higher bulk melting temperatures of the metals and agree
better with experimental values as compared to the original EAM-type potential.
Our results show that the modification works well for metals with both cubic
and hexagonal crystalline lattices. The Gupta potential is chosen as an
illustrative case study but the modification proposed is general and can be
applied to other widely-used potentials of the EAM type.
