# Axilrod-Teller-Muto potential example

variable        x index 1
variable        y index 1
variable        z index 1

variable        xx equal 10*$x
variable        yy equal 10*$y
variable        zz equal 10*$z

units           lj
atom_style      atomic

lattice         fcc 0.65
region          box block 0 ${xx} 0 ${yy} 0 ${zz}
create_box      1 box
create_atoms    1 box

pair_style      hybrid/overlay lj/cut 4.5 atm 4.5 2.5
pair_coeff      * * lj/cut 1.0 1.0
pair_coeff      * * atm * 0.072

mass            * 1.0
velocity        all create 1.033 12345678 loop geom

fix             1 all nvt temp 1.033 1.033 0.05

timestep        0.002
thermo          5

run             25