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# bulk Silicon lattice   
units   metal
boundary   p p p

atom_style  atomic

variable   x  index  5.4305  5.4306  5.4307  5.4308  5.4309  5.4310
lattice   diamond $x
#lattice   fcc 3.615
#lattice   bcc 3.28
#lattice   sc 2.60  

region      box block 0 3 0 3 0 3
create_box  1 box   
create_atoms  1 box

pair_style  sw  
pair_coeff    * * Si.sw Si
mass     1 28   
neighbor   1.0 bin   
neigh_modify   every 1 delay 5 check yes

variable   P equal pe/216  
variable   r equal 216/($x*3)^3
timestep   0.005
thermo   10     

min_style  sd     
minimize     1.0e-12 1.0e-12 1000 1000
compute   3 all pe/atom
compute   4 all ke/atom
compute      5 all coord/atom 3.0
dump        1 all custom 1 dump.atom id xs ys zs c_3 c_4 c_5
print      "(lattice parameter, rho, energy per atom):  $x $r $P"

clear
next     x
jump     in.silicon
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