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lammps/examples/USER/misc/meam_sw_spline/Si/sc.in

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# Si fcc phase
units metal
boundary p p p
atom_style atomic
lattice sc 2.612
region box block 0 1 0 1 0 1
create_box 1 box
create_atoms 1 box
pair_style meam/sw/spline
pair_coeff * * ../../potentials/Si.b.meam.sw.spline Si
mass * 28.085
variable cohesive_energy equal pe/atoms
variable atmVol equal vol/atoms
variable aLatt equal (vol/atoms)^0.3333333333
run 0
print "===================================================="
print "Calculated cohesive energy: ${cohesive_energy} eV/atom"
print "Reference cohesive energy: -4.337 eV/atom"
print "Atomic volume ${atmVol} A^3"
print "Lattice constant ${aLatt} A"
print "Reference lattice constant 2.612 A"
print "===================================================="
#dump 1 all custom 1 sc.dump id type x y z fx fy fz
#run 0