element(s):
['Si']
AFLOW prototype label:
A_cF8_227_a
Parameter names:
['a']
model type (only 'standard' supported at this time):
standard
number of parameter sets:
1
Parameter values for parameter set 0:
['5.4673']
model name:
ThreeBodyCluster_BH_BiswasHamann_1987_Si__MO_019616213550_000
==== Building ASE atoms object with: ====
representative atom symbols =  ['Si']
representative atom coordinates =  [[0 0 0]]
spacegroup =  227
cell =  [[5.4673, 0, 0], [0, 5.4673, 0], [0, 0, 5.4673]]
=========================================
      Step     Time          Energy          fmax
BFGS:    0 16:29:33      -36.804068         0.398667
BFGS:    1 16:29:33      -36.810521         0.356668
BFGS:    2 16:29:33      -36.835508         0.017571
BFGS:    3 16:29:33      -36.835565         0.000723
BFGS:    4 16:29:33      -36.835565         0.000001
BFGS:    5 16:29:33      -36.835565         0.000000
Minimization converged after 5 steps.
Maximum force component: 3.0686633798802925e-31 eV/Angstrom
Maximum stress component: 5.423209789697372e-12 eV/Angstrom^3
==== Minimized structure obtained from ASE ====
symbols =  ['Si', 'Si', 'Si', 'Si', 'Si', 'Si', 'Si', 'Si']
basis =  [[6.03458049e-33 3.14569315e-33 6.73178607e-34]
 [0.00000000e+00 5.00000000e-01 5.00000000e-01]
 [5.00000000e-01 5.00000000e-01 4.69795677e-34]
 [5.00000000e-01 4.61818015e-33 5.00000000e-01]
 [7.50000000e-01 2.50000000e-01 7.50000000e-01]
 [2.50000000e-01 2.50000000e-01 2.50000000e-01]
 [2.50000000e-01 7.50000000e-01 7.50000000e-01]
 [7.50000000e-01 7.50000000e-01 2.50000000e-01]]
cellpar =  Cell([[5.431844736563629, 6.807693118544353e-33, -4.215591234518189e-33], [2.7432093853608927e-33, 5.431844736563629, 5.469644446388705e-19], [2.7100410898908863e-34, 5.469644446388648e-19, 5.431844736563629]])
forces =  [[ 2.23175519e-32  2.65020928e-31 -5.57938796e-33]
 [-1.17167147e-31 -1.84119803e-31 -1.17167147e-31]
 [-5.02144917e-32 -1.67381639e-31  2.23175519e-32]
 [ 5.57938796e-32 -1.64591945e-31 -1.11587759e-32]
 [-1.42971817e-31  2.01555390e-31  6.48603851e-32]
 [-3.13840573e-32  5.57938796e-33 -2.78969398e-33]
 [-1.45064087e-31 -1.61802251e-31  1.95278579e-32]
 [-3.55685983e-32  3.06866338e-31 -1.53433169e-31]]
stress =  [-5.42320979e-12 -5.42320979e-12 -5.42320979e-12  1.31887657e-28
  1.37843319e-61  1.80868112e-61]
energy per atom =  -4.6044456741296464
===============================================
Parameter sets [0] relaxed to duplicate structures, attempting to write only one of them.
Successfully added property instance for parameter set 0