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_ErhartAlbe_2005SiII_SiC__MO_408791041969_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 09:48:38 -35.499070 0.228418 BFGS: 1 09:48:38 -35.505704 0.245870 BFGS: 2 09:48:38 -35.515104 0.296100 BFGS: 3 09:48:38 -35.521886 0.302251 BFGS: 4 09:48:38 -35.541391 0.282078 BFGS: 5 09:48:38 -35.555522 0.218914 BFGS: 6 09:48:38 -35.560752 0.079995 BFGS: 7 09:48:38 -35.561493 0.054277 BFGS: 8 09:48:38 -35.561622 0.047791 BFGS: 9 09:48:38 -35.561741 0.039627 BFGS: 10 09:48:38 -35.561940 0.020883 BFGS: 11 09:48:38 -35.562064 0.011725 BFGS: 12 09:48:38 -35.562099 0.002920 BFGS: 13 09:48:38 -35.562101 0.000480 BFGS: 14 09:48:38 -35.562101 0.000044 BFGS: 15 09:48:38 -35.562101 0.000002 BFGS: 16 09:48:38 -35.562101 0.000000 BFGS: 17 09:48:38 -35.562101 0.000000 Minimization converged after 17 steps. Maximum force component: 9.274493705454465e-12 eV/Angstrom Maximum stress component: 1.8395654451869854e-11 eV/Angstrom^3 ==== Minimized structure obtained from ASE ==== symbols = ['Si', 'Si', 'Si', 'Si', 'Si', 'Si', 'Si', 'Si'] basis = [[0.81928697 0.81928697 0. ] [0.18071303 0.18071303 0. ] [0.18071303 0.81928697 0. ] [0.81928697 0.18071303 0. ] [0.31928697 0.31928697 0.5 ] [0.68071303 0.68071303 0.5 ] [0.68071303 0.31928697 0.5 ] [0.31928697 0.68071303 0.5 ]] cellpar = Cell([[6.58138631843937, 2.418938569757742e-37, -5.619699188325616e-32], [2.8018313260405223e-36, 6.581386318439371, 5.256124875745014e-18], [-3.690634603607724e-33, 3.1897238739621616e-18, 3.9382089253279364]]) forces = [[ 9.27449371e-12 9.27449371e-12 7.45547663e-30] [-9.27449371e-12 -9.27449371e-12 -7.45547663e-30] [-9.27449371e-12 9.27449371e-12 7.40693445e-30] [ 9.27449371e-12 -9.27449371e-12 -7.30985011e-30] [ 9.27449371e-12 9.27449371e-12 7.45547663e-30] [-9.27449371e-12 -9.27449371e-12 -7.43120554e-30] [-9.27449371e-12 9.27449371e-12 7.43120554e-30] [ 9.27449371e-12 -9.27449371e-12 -7.33412119e-30]] stress = [-1.83956545e-11 -1.83956545e-11 -1.18555222e-11 1.13508123e-27 2.37779455e-34 -3.67879127e-50] energy per atom = -4.445262669384677 =============================================== Parameter sets [0] relaxed to duplicate structures, attempting to write only one of them. Successfully added property instance for parameter set 0