element(s):
['F', 'Na']
AFLOW prototype label:
AB_cF8_225_a_b
Parameter names:
['a']
model type (only 'standard' supported at this time):
standard
number of parameter sets:
1
Parameter values for parameter set 0:
['4.6857']
model name:
LJ_ElliottAkerson_2015_Universal__MO_959249795837_003
==== Building ASE atoms object with: ====
representative atom symbols =  ['F', 'Na']
representative atom coordinates =  [[0.  0.  0. ]
 [0.5 0.5 0.5]]
spacegroup =  225
cell =  [[4.6857, 0, 0], [0, 4.6857, 0], [0, 0, 4.6857]]
=========================================
      Step     Time          Energy          fmax
BFGS:    0 19:25:09      -51.622624         4.906585
BFGS:    1 19:25:09      -52.326811         4.470201
BFGS:    2 19:25:09      -52.961560         3.981680
BFGS:    3 19:25:09      -53.514787         3.379045
BFGS:    4 19:25:09      -53.970296         2.676817
BFGS:    5 19:25:09      -54.312240         1.862687
BFGS:    6 19:25:09      -54.522820         0.922878
BFGS:    7 19:25:09      -54.582450         0.137213
BFGS:    8 19:25:09      -54.583676         0.008221
BFGS:    9 19:25:09      -54.583680         0.000067
BFGS:   10 19:25:09      -54.583680         0.000000
BFGS:   11 19:25:09      -54.583680         0.000000
Minimization converged after 11 steps.
Maximum force component: 0.0 eV/Angstrom
Maximum stress component: 1.5232034636998206e-14 eV/Angstrom^3
==== Minimized structure obtained from ASE ====
symbols =  ['F', 'F', 'F', 'F', 'Na', 'Na', 'Na', 'Na']
basis =  [[0.00000000e+00 0.00000000e+00 0.00000000e+00]
 [0.00000000e+00 5.00000000e-01 5.00000000e-01]
 [5.00000000e-01 5.15329047e-34 5.00000000e-01]
 [5.00000000e-01 5.00000000e-01 3.43552698e-34]
 [5.00000000e-01 5.00000000e-01 5.00000000e-01]
 [5.00000000e-01 3.56664225e-66 1.22054437e-48]
 [0.00000000e+00 5.00000000e-01 5.15329047e-34]
 [0.00000000e+00 3.43552698e-34 5.00000000e-01]]
cellpar =  Cell([[4.4847383369557825, 7.191199129085231e-33, -5.185058919264421e-32], [2.725878329636583e-32, 4.4847383369557825, -1.3105182927309266e-17], [-1.117996026682537e-33, -1.3105182927309285e-17, 4.4847383369557825]])
forces =  [[0. 0. 0.]
 [0. 0. 0.]
 [0. 0. 0.]
 [0. 0. 0.]
 [0. 0. 0.]
 [0. 0. 0.]
 [0. 0. 0.]
 [0. 0. 0.]]
stress =  [1.52320346e-14 1.52320346e-14 1.52320346e-14 2.11691579e-30
 3.83024239e-34 1.19438895e-49]
energy per atom =  -6.8229600224513245
===============================================
Parameter sets [0] relaxed to duplicate structures, attempting to write only one of them.
Successfully added property instance for parameter set 0