element(s): ['C', 'Nb'] AFLOW prototype label: AB_cF8_216_a_c Parameter names: ['a'] model type (only 'standard' supported at this time): standard number of parameter sets: 1 Parameter values for parameter set 0: ['4.8303'] model name: LJ_ElliottAkerson_2015_Universal__MO_959249795837_003 ==== Building ASE atoms object with: ==== representative atom symbols = ['C', 'Nb'] representative atom coordinates = [[0. 0. 0. ] [0.25 0.25 0.25]] spacegroup = 216 cell = [[4.8303, 0, 0], [0, 4.8303, 0], [0, 0, 4.8303]] ========================================= Step Time Energy fmax BFGS: 0 12:18:02 -130.830343 106.897704 BFGS: 1 12:18:02 -145.762304 92.451497 BFGS: 2 12:18:02 -158.638886 79.467686 BFGS: 3 12:18:02 -169.668598 67.804097 BFGS: 4 12:18:02 -179.039698 57.332594 BFGS: 5 12:18:02 -186.922185 47.937651 BFGS: 6 12:18:02 -193.477597 39.572730 BFGS: 7 12:18:02 -198.837080 32.026110 BFGS: 8 12:18:02 -203.125095 25.273068 BFGS: 9 12:18:02 -206.454834 19.236963 BFGS: 10 12:18:02 -208.928558 13.848565 BFGS: 11 12:18:02 -210.638652 9.045323 BFGS: 12 12:18:02 -211.668577 4.770695 BFGS: 13 12:18:02 -212.095503 1.035965 BFGS: 14 12:18:02 -212.119281 0.117098 BFGS: 15 12:18:02 -212.119578 0.004989 BFGS: 16 12:18:02 -212.119579 0.000010 BFGS: 17 12:18:02 -212.119579 0.000000 Minimization converged after 17 steps. Maximum force component: 3.1385787857692e-29 eV/Angstrom Maximum stress component: 5.43263315148544e-11 eV/Angstrom^3 ==== Minimized structure obtained from ASE ==== symbols = ['C', 'C', 'C', 'C', 'Nb', 'Nb', 'Nb', 'Nb'] basis = [[0.00000000e+00 1.85640654e-50 0.00000000e+00] [0.00000000e+00 5.00000000e-01 5.00000000e-01] [5.00000000e-01 0.00000000e+00 5.00000000e-01] [5.00000000e-01 5.00000000e-01 0.00000000e+00] [2.50000000e-01 2.50000000e-01 2.50000000e-01] [7.50000000e-01 7.50000000e-01 2.50000000e-01] [7.50000000e-01 2.50000000e-01 7.50000000e-01] [2.50000000e-01 7.50000000e-01 7.50000000e-01]] cellpar = Cell([[5.232159493668709, 2.7870969738671822e-33, -2.2249507772708655e-33], [-7.164747344086139e-33, 5.232159493668709, 1.8072080534912856e-17], [1.780719866744737e-33, 1.8072080534912856e-17, 5.232159493668709]]) forces = [[ 0.00000000e+00 0.00000000e+00 0.00000000e+00] [ 8.59884599e-32 8.59884599e-32 8.59884599e-32] [ 2.92654226e-65 2.97007454e-49 8.59884599e-32] [ 3.43953840e-31 1.83219320e-64 -1.46264724e-64] [-6.87907679e-31 3.02679379e-29 1.04905921e-29] [ 1.20813786e-29 -3.12783023e-29 -2.01804167e-30] [ 1.97773458e-30 3.06118917e-29 3.78349223e-30] [ 7.56698447e-30 -3.13857879e-29 -4.47139991e-30]] stress = [-5.43263315e-11 -5.43263315e-11 -5.43263315e-11 3.04118437e-27 -9.60543927e-33 5.99046514e-50] energy per atom = -26.51494736538582 =============================================== Parameter sets [0] relaxed to duplicate structures, attempting to write only one of them. Successfully added property instance for parameter set 0