element(s):
['Si']
AFLOW prototype label:
A_tI8_139_h
Parameter names:
['a', 'c/a', 'x1']
model type (only 'standard' supported at this time):
standard
number of parameter sets:
1
Parameter values for parameter set 0:
['6.6881', '0.57703982', '0.8213634']
model name:
SW_StillingerWeber_1985_Si__MO_405512056662_006
==== Building ASE atoms object with: ====
representative atom symbols =  ['Si']
representative atom coordinates =  [[0.8213634 0.8213634 0.       ]]
spacegroup =  139
cell =  [[6.6881, 0, 0], [0, 6.6881, 0], [0, 0, 3.8593]]
=========================================
      Step     Time          Energy          fmax
BFGS:    0 17:32:18      -33.406438         0.335797
BFGS:    1 17:32:18      -33.415670         0.236343
BFGS:    2 17:32:18      -33.419126         0.264782
BFGS:    3 17:32:18      -33.422323         0.269808
BFGS:    4 17:32:18      -33.431787         0.244157
BFGS:    5 17:32:18      -33.442236         0.256027
BFGS:    6 17:32:18      -33.450898         0.182340
BFGS:    7 17:32:18      -33.454111         0.050701
BFGS:    8 17:32:18      -33.454382         0.016791
BFGS:    9 17:32:18      -33.454412         0.013197
BFGS:   10 17:32:18      -33.454418         0.011029
BFGS:   11 17:32:18      -33.454438         0.004686
BFGS:   12 17:32:18      -33.454446         0.001657
BFGS:   13 17:32:18      -33.454449         0.000549
BFGS:   14 17:32:18      -33.454449         0.000111
BFGS:   15 17:32:18      -33.454449         0.000005
BFGS:   16 17:32:18      -33.454449         0.000000
BFGS:   17 17:32:18      -33.454449         0.000000
Minimization converged after 17 steps.
Maximum force component: 1.2918958404136225e-09 eV/Angstrom
Maximum stress component: 1.0693734496437528e-10 eV/Angstrom^3
==== Minimized structure obtained from ASE ====
symbols =  ['Si', 'Si', 'Si', 'Si', 'Si', 'Si', 'Si', 'Si']
basis =  [[8.18972597e-01 8.18972597e-01 0.00000000e+00]
 [1.81027403e-01 1.81027403e-01 0.00000000e+00]
 [1.81027403e-01 8.18972597e-01 0.00000000e+00]
 [8.18972597e-01 1.81027403e-01 3.41963010e-34]
 [3.18972597e-01 3.18972597e-01 5.00000000e-01]
 [6.81027403e-01 6.81027403e-01 5.00000000e-01]
 [6.81027403e-01 3.18972597e-01 5.00000000e-01]
 [3.18972597e-01 6.81027403e-01 5.00000000e-01]]
cellpar =  Cell([[6.605424514344244, -7.922696739291293e-36, -7.916814761695596e-33], [-6.0029363820341376e-36, 6.605424514344243, -5.648545412774641e-18], [7.535609010036372e-33, -3.0884581896519394e-18, 3.9423882732426114]])
forces =  [[ 1.29189584e-09  1.29189584e-09 -1.10472716e-27]
 [-1.29189584e-09 -1.29189584e-09  1.10474842e-27]
 [-1.29189584e-09  1.29189584e-09 -1.10475450e-27]
 [ 1.29189584e-09 -1.29189584e-09  1.10472565e-27]
 [ 1.29189584e-09  1.29189584e-09 -1.10473628e-27]
 [-1.29189584e-09 -1.29189584e-09  1.10474691e-27]
 [-1.29189584e-09  1.29189584e-09 -1.10475108e-27]
 [ 1.29189584e-09 -1.29189584e-09  1.10473628e-27]]
stress =  [6.98059218e-12 6.98059218e-12 1.06937345e-10 1.71824114e-26
 5.94695254e-44 9.26351629e-60]
energy per atom =  -4.181806081961679
===============================================
Parameter sets [0] relaxed to duplicate structures, attempting to write only one of them.
Successfully added property instance for parameter set 0