element(s): ['N'] AFLOW prototype label: A_cI8_199_a Parameter names: ['a', 'x1'] model type (only 'standard' supported at this time): standard number of parameter sets: 1 Parameter values for parameter set 0: ['3.8018', '0.66473467'] model name: Tersoff_LAMMPS_NordAlbeErhart_2003_GaN__MO_612061685362_004 ==== Building ASE atoms object with: ==== representative atom symbols = ['N'] representative atom coordinates = [[0.16473467 0.16473467 0.16473467]] spacegroup = 199 cell = [[3.8018, 0, 0], [0, 3.8018, 0], [0, 0, 3.8018]] ========================================= Step Time Energy fmax BFGS: 0 18:20:15 -10.389439 12.8544 BFGS: 1 18:20:15 -13.869760 6.1892 BFGS: 2 18:20:15 -16.130385 5.1485 BFGS: 3 18:20:15 -18.092926 4.8030 BFGS: 4 18:20:15 -19.828508 2.4840 BFGS: 5 18:20:15 -18.993669 6.1484 BFGS: 6 18:20:15 -20.124022 3.5663 BFGS: 7 18:20:15 -20.347203 2.0074 BFGS: 8 18:20:15 -20.686713 1.9134 BFGS: 9 18:20:15 -20.995937 1.6339 BFGS: 10 18:20:15 -21.238626 1.2043 BFGS: 11 18:20:15 -21.408685 0.7664 BFGS: 12 18:20:15 -21.509116 0.3543 BFGS: 13 18:20:15 -21.544827 0.0425 BFGS: 14 18:20:15 -21.545097 0.0168 BFGS: 15 18:20:15 -21.545104 0.0059 BFGS: 16 18:20:15 -21.545105 0.0003 BFGS: 17 18:20:15 -21.545105 0.0000 BFGS: 18 18:20:15 -21.545105 0.0000 BFGS: 19 18:20:15 -21.545105 0.0000 BFGS: 20 18:20:15 -21.545105 0.0000 Minimization converged after 20 steps. Maximum force component: 1.2695114203582427e-10 eV/Angstrom Maximum stress component: 1.543434589662358e-11 eV/Angstrom^3 ==== Minimized structure obtained from ASE ==== symbols = ['N', 'N', 'N', 'N', 'N', 'N', 'N', 'N'] basis = [[0.20436319 0.20436319 0.20436319] [0.29563681 0.79563681 0.70436319] [0.79563681 0.70436319 0.29563681] [0.70436319 0.29563681 0.79563681] [0.70436319 0.70436319 0.70436319] [0.79563681 0.29563681 0.20436319] [0.29563681 0.20436319 0.79563681] [0.20436319 0.79563681 0.29563681]] cellpar = Cell([3.9915286687117812, 3.9915286687117812, 3.9915286687117812]) forces = [[ 1.26951142e-10 1.26951142e-10 1.26951142e-10] [-1.26951142e-10 -1.26951142e-10 1.26951142e-10] [-1.26951142e-10 1.26951142e-10 -1.26951142e-10] [ 1.26951142e-10 -1.26951142e-10 -1.26951142e-10] [ 1.26951142e-10 1.26951142e-10 1.26951142e-10] [-1.26951142e-10 -1.26951142e-10 1.26951142e-10] [-1.26951142e-10 1.26951142e-10 -1.26951142e-10] [ 1.26951142e-10 -1.26951142e-10 -1.26951142e-10]] stress = [1.54343459e-11 1.54343459e-11 1.54343459e-11 0.00000000e+00 0.00000000e+00 0.00000000e+00] energy per atom = -2.693138141774912 =============================================== Parameter sets [0] relaxed to duplicate structures, attempting to write only one of them. Successfully added property instance for parameter set 0