element(s): ['I', '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: ['6.4903'] model name: LJ_ElliottAkerson_2015_Universal__MO_959249795837_003 ==== Building ASE atoms object with: ==== representative atom symbols = ['I', 'Na'] representative atom coordinates = [[0. 0. 0. ] [0.5 0.5 0.5]] spacegroup = 225 cell = [[6.4903, 0, 0], [0, 6.4903, 0], [0, 0, 6.4903]] ========================================= Step Time Energy fmax BFGS: 0 14:33:59 -35.296545 5.8346 BFGS: 1 14:33:59 -36.172653 5.8435 BFGS: 2 14:33:59 -37.048542 5.8312 BFGS: 3 14:33:59 -37.920788 5.7944 BFGS: 4 14:33:59 -38.785450 5.7294 BFGS: 5 14:33:59 -39.640441 5.6506 BFGS: 6 14:33:59 -40.479831 5.5363 BFGS: 7 14:33:59 -41.297749 5.3617 BFGS: 8 14:33:59 -42.085952 5.1391 BFGS: 9 14:33:59 -42.836747 4.8618 BFGS: 10 14:33:59 -43.541380 4.5223 BFGS: 11 14:33:59 -44.189899 4.1121 BFGS: 12 14:33:59 -44.773577 3.6495 BFGS: 13 14:33:59 -45.278710 3.0695 BFGS: 14 14:33:59 -45.689297 2.3867 BFGS: 15 14:33:59 -45.989195 1.5897 BFGS: 16 14:33:59 -46.159560 0.6584 BFGS: 17 14:33:59 -46.190442 0.0890 BFGS: 18 14:33:59 -46.190977 0.0041 BFGS: 19 14:33:59 -46.190978 0.0000 BFGS: 20 14:33:59 -46.190978 0.0000 Minimization converged after 20 steps. Maximum force component: 0.0 eV/Angstrom Maximum stress component: 2.4338793524165805e-10 eV/Angstrom^3 ==== Minimized structure obtained from ASE ==== symbols = ['I', 'I', 'I', 'I', 'Na', 'Na', 'Na', 'Na'] basis = [[0. 0. 0. ] [0. 0.5 0.5] [0.5 0. 0.5] [0.5 0.5 0. ] [0.5 0.5 0.5] [0.5 0. 0. ] [0. 0.5 0. ] [0. 0. 0.5]] cellpar = Cell([[5.815853351946769, 3.7944565320520065e-32, 1.4995122148721355e-32], [2.7681709382501675e-32, 5.815853351946769, 1.0332245973303502e-17], [-1.9797946174371275e-32, 1.0332245973303536e-17, 5.815853351946769]]) 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 = [-2.43387935e-10 -2.43387935e-10 -2.43387935e-10 -4.14932333e-28 -2.27757970e-34 2.66211003e-52] energy per atom = -5.773872280365696 =============================================== Parameter sets [0] relaxed to duplicate structures, attempting to write only one of them. Successfully added property instance for parameter set 0