element(s): ['Br', '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: ['6'] model name: LJ_ElliottAkerson_2015_Universal__MO_959249795837_003 ==== Building ASE atoms object with: ==== representative atom symbols = ['Br', 'Na'] representative atom coordinates = [[0. 0. 0. ] [0.5 0.5 0.5]] spacegroup = 225 cell = [[6, 0, 0], [0, 6, 0], [0, 0, 6]] ========================================= Step Time Energy fmax BFGS: 0 20:15:37 -42.398366 6.476698 BFGS: 1 20:15:37 -43.366022 6.420303 BFGS: 2 20:15:37 -44.322825 6.331246 BFGS: 3 20:15:37 -45.263780 6.207116 BFGS: 4 20:15:37 -46.182749 6.038236 BFGS: 5 20:15:37 -47.072827 5.820857 BFGS: 6 20:15:37 -47.926250 5.548334 BFGS: 7 20:15:37 -48.734198 5.213193 BFGS: 8 20:15:37 -49.486659 4.807028 BFGS: 9 20:15:37 -50.172285 4.320388 BFGS: 10 20:15:37 -50.781690 3.773676 BFGS: 11 20:15:38 -51.298160 3.094353 BFGS: 12 20:15:38 -51.705720 2.313003 BFGS: 13 20:15:38 -51.984919 1.386367 BFGS: 14 20:15:38 -52.114205 0.311155 BFGS: 15 20:15:38 -52.120350 0.030392 BFGS: 16 20:15:38 -52.120408 0.000582 BFGS: 17 20:15:38 -52.120408 0.000001 BFGS: 18 20:15:38 -52.120408 0.000000 Minimization converged after 18 steps. Maximum force component: 0.0 eV/Angstrom Maximum stress component: 1.6507102383331509e-12 eV/Angstrom^3 ==== Minimized structure obtained from ASE ==== symbols = ['Br', 'Br', 'Br', 'Br', 'Na', 'Na', 'Na', 'Na'] basis = [[0.00000000e+00 0.00000000e+00 0.00000000e+00] [7.51197611e-49 5.00000000e-01 5.00000000e-01] [5.00000000e-01 5.63848880e-34 5.00000000e-01] [5.00000000e-01 5.00000000e-01 2.81924440e-34] [5.00000000e-01 5.00000000e-01 5.00000000e-01] [5.00000000e-01 7.82497512e-50 0.00000000e+00] [7.51197611e-49 5.00000000e-01 2.81924440e-34] [6.25998009e-50 5.63848880e-34 5.00000000e-01]] cellpar = Cell([[5.465095379143035, 1.3823847302822928e-33, -2.0087736998312363e-33], [-1.7852913336982392e-32, 5.465095379143035, -1.4974210602547884e-17], [2.6382589170234268e-33, -1.4974210602547884e-17, 5.465095379143035]]) 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 = [-1.65071024e-12 -1.65071024e-12 -1.65071024e-12 -8.23818985e-30 -3.00920500e-35 -3.48764471e-52] energy per atom = -6.515050952242554 =============================================== Parameter sets [0] relaxed to duplicate structures, attempting to write only one of them. Successfully added property instance for parameter set 0