element(s): ['Ni', 'O'] 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: ['4.2269'] model name: Sim_LAMMPS_Buckingham_FisherMatsubara_2005_NiO__SM_337243826931_000 ==== Building ASE atoms object with: ==== representative atom symbols = ['Ni', 'O'] representative atom coordinates = [[0. 0. 0. ] [0.5 0.5 0.5]] spacegroup = 225 cell = [[4.2269, 0, 0], [0, 4.2269, 0], [0, 0, 4.2269]] ========================================= Step Time Energy fmax BFGS: 0 14:36:40 -162.554060 0.3250 BFGS: 1 14:36:40 -162.558430 0.3052 BFGS: 2 14:36:40 -162.587893 0.0859 BFGS: 3 14:36:40 -162.590360 0.0031 BFGS: 4 14:36:40 -162.590377 0.0000 BFGS: 5 14:36:40 -162.590378 0.0000 BFGS: 6 14:36:40 -162.590378 0.0000 BFGS: 7 14:36:40 -162.590208 0.0001 BFGS: 8 14:36:40 -162.590376 0.0001 BFGS: 9 14:36:40 -162.590377 0.0001 BFGS: 10 14:36:40 -162.590377 0.0000 BFGS: 11 14:36:40 -162.590378 0.0000 BFGS: 12 14:36:40 -162.590377 0.0000 BFGS: 13 14:36:40 -162.590378 0.0000 BFGS: 14 14:36:40 -162.590378 0.0000 Minimization converged after 14 steps. Maximum force component: 0.0 eV/Angstrom Maximum stress component: 7.677664366036477e-10 eV/Angstrom^3 ==== Minimized structure obtained from ASE ==== symbols = ['Ni', 'Ni', 'Ni', 'Ni', 'O', 'O', 'O', 'O'] basis = [[0.00000000e+00 0.00000000e+00 0.00000000e+00] [1.63376565e-49 5.00000000e-01 5.00000000e-01] [5.00000000e-01 0.00000000e+00 5.00000000e-01] [5.00000000e-01 5.00000000e-01 0.00000000e+00] [5.00000000e-01 5.00000000e-01 5.00000000e-01] [5.00000000e-01 4.94005853e-68 0.00000000e+00] [0.00000000e+00 5.00000000e-01 0.00000000e+00] [3.06331059e-49 0.00000000e+00 5.00000000e-01]] cellpar = Cell([[4.188041081763018, -5.885277069912295e-33, 2.6967309684984218e-33], [-3.693452864645558e-33, 4.188041081763018, 5.0653943129450275e-18], [1.3014391156584083e-33, 5.0653943129450275e-18, 4.188041081763018]]) 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 = [-7.67766437e-10 -7.67766437e-10 -7.67766437e-10 -9.88020792e-26 4.09935366e-34 5.23882286e-50] energy per atom = -20.32379719286576 =============================================== Parameter sets [0] relaxed to duplicate structures, attempting to write only one of them. Successfully added property instance for parameter set 0