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 12:02:07      -33.406438         0.335797
BFGS:    1 12:02:07      -33.415670         0.236343
BFGS:    2 12:02:07      -33.419126         0.264782
BFGS:    3 12:02:07      -33.422323         0.269808
BFGS:    4 12:02:07      -33.431787         0.244157
BFGS:    5 12:02:08      -33.442236         0.256027
BFGS:    6 12:02:08      -33.450898         0.182340
BFGS:    7 12:02:08      -33.454111         0.050701
BFGS:    8 12:02:08      -33.454382         0.016791
BFGS:    9 12:02:08      -33.454412         0.013197
BFGS:   10 12:02:08      -33.454418         0.011029
BFGS:   11 12:02:08      -33.454438         0.004686
BFGS:   12 12:02:09      -33.454446         0.001657
BFGS:   13 12:02:09      -33.454449         0.000549
BFGS:   14 12:02:09      -33.454449         0.000111
BFGS:   15 12:02:09      -33.454449         0.000005
BFGS:   16 12:02:09      -33.454449         0.000000
BFGS:   17 12:02:09      -33.454449         0.000000
Minimization converged after 17 steps.
Maximum force component: 1.2918806837009314e-09 eV/Angstrom
Maximum stress component: 1.0693792460939587e-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 1.95407434e-34]
 [1.81027403e-01 1.81027403e-01 4.88518586e-35]
 [1.81027403e-01 8.18972597e-01 1.95407434e-34]
 [8.18972597e-01 1.81027403e-01 2.44259293e-35]
 [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([[6.605424514344241, -4.077275174393003e-36, 1.5005694266598685e-33], [-7.841766987822319e-36, 6.605424514344241, -3.077983897940788e-18], [1.4023206659910914e-33, -1.6519679941304092e-18, 3.942388273242613]])
forces =  [[ 1.29188068e-09  1.29188068e-09 -6.01976101e-28]
 [-1.29188068e-09 -1.29188068e-09  6.01976101e-28]
 [-1.29188068e-09  1.29188068e-09 -6.02006472e-28]
 [ 1.29188068e-09 -1.29188068e-09  6.01974583e-28]
 [ 1.29188068e-09  1.29188068e-09 -6.01988250e-28]
 [-1.29188068e-09 -1.29188068e-09  6.01988250e-28]
 [-1.29188068e-09  1.29188068e-09 -6.02012167e-28]
 [ 1.29188068e-09 -1.29188068e-09  6.01982176e-28]]
stress =  [ 6.98006476e-12  6.98006476e-12  1.06937925e-10  2.97326054e-28
  1.10670964e-44 -2.37267740e-61]
energy per atom =  -4.181806081961677
===============================================
Parameter sets [0] relaxed to duplicate structures, attempting to write only one of them.
Successfully added property instance for parameter set 0