element(s): ['Si'] AFLOW prototype label: A_tI8_139_h Parameter names: ['a', 'c/a', 'x1'] model type (only 'standard' supported at this time): standard number of parameter sets: 1 Parameter values for parameter set 0: ['6.6881', '0.57703982', '0.8213634'] model name: Tersoff_LAMMPS_Tersoff_1989_SiGe__MO_350526375143_004 ==== Building ASE atoms object with: ==== representative atom symbols = ['Si'] representative atom coordinates = [[0.8213634 0.8213634 0. ]] spacegroup = 139 cell = [[6.6881, 0, 0], [0, 6.6881, 0], [0, 0, 3.8593]] ========================================= Step Time Energy fmax BFGS: 0 17:32:59 -35.954408 0.451230 BFGS: 1 17:32:59 -35.972616 0.232543 BFGS: 2 17:32:59 -35.980750 0.192174 BFGS: 3 17:32:59 -35.981954 0.186230 BFGS: 4 17:32:59 -35.991120 0.142298 BFGS: 5 17:32:59 -35.993654 0.140627 BFGS: 6 17:32:59 -35.994444 0.115418 BFGS: 7 17:32:59 -35.994717 0.098663 BFGS: 8 17:32:59 -35.995366 0.057659 BFGS: 9 17:32:59 -35.996046 0.052739 BFGS: 10 17:32:59 -35.996494 0.029407 BFGS: 11 17:32:59 -35.996589 0.006931 BFGS: 12 17:32:59 -35.996597 0.001048 BFGS: 13 17:32:59 -35.996597 0.000052 BFGS: 14 17:33:00 -35.996597 0.000003 BFGS: 15 17:33:00 -35.996597 0.000000 BFGS: 16 17:33:00 -35.996597 0.000000 Minimization converged after 16 steps. Maximum force component: 1.8718642526023446e-10 eV/Angstrom Maximum stress component: 1.1229764414536636e-10 eV/Angstrom^3 ==== Minimized structure obtained from ASE ==== symbols = ['Si', 'Si', 'Si', 'Si', 'Si', 'Si', 'Si', 'Si'] basis = [[0.81912313 0.81912313 0. ] [0.18087687 0.18087687 0. ] [0.18087687 0.81912313 0. ] [0.81912313 0.18087687 0. ] [0.31912313 0.31912313 0.5 ] [0.68087687 0.68087687 0.5 ] [0.68087687 0.31912313 0.5 ] [0.31912313 0.68087687 0.5 ]] cellpar = Cell([[6.620051101886058, -1.0605463734304096e-36, 5.066957409792125e-35], [-1.1010175357468194e-36, 6.620051101886062, -9.697984666306956e-18], [-4.1745648666485615e-33, -5.6232703838373826e-18, 3.886072211195232]]) forces = [[ 1.87186425e-10 1.87186425e-10 -2.74372753e-28] [-1.87186425e-10 -1.87186425e-10 2.74169180e-28] [-1.87186425e-10 1.87186425e-10 -2.74205105e-28] [ 1.87186425e-10 -1.87186425e-10 2.74360779e-28] [ 1.87186425e-10 1.87186425e-10 -2.74456578e-28] [-1.87186425e-10 -1.87186425e-10 2.74235042e-28] [-1.87186425e-10 1.87186425e-10 -2.74217080e-28] [ 1.87186425e-10 -1.87186425e-10 2.74432628e-28]] stress = [ 1.12297644e-10 1.12297644e-10 -1.47068551e-11 -1.91539977e-26 -1.67693526e-33 5.01956764e-49] energy per atom = -4.499574600061198 =============================================== Parameter sets [0] relaxed to duplicate structures, attempting to write only one of them. Successfully added property instance for parameter set 0