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_1988T3_Si__MO_186459956893_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 16:34:01 -35.955715 0.452673 BFGS: 1 16:34:01 -35.974098 0.235827 BFGS: 2 16:34:01 -35.982546 0.191307 BFGS: 3 16:34:01 -35.983746 0.185583 BFGS: 4 16:34:01 -35.992293 0.139016 BFGS: 5 16:34:01 -35.995133 0.142155 BFGS: 6 16:34:01 -35.996093 0.117282 BFGS: 7 16:34:01 -35.996366 0.100327 BFGS: 8 16:34:01 -35.996936 0.063580 BFGS: 9 16:34:01 -35.997606 0.053135 BFGS: 10 16:34:01 -35.998112 0.033690 BFGS: 11 16:34:01 -35.998244 0.009324 BFGS: 12 16:34:01 -35.998257 0.001553 BFGS: 13 16:34:01 -35.998257 0.000096 BFGS: 14 16:34:01 -35.998257 0.000005 BFGS: 15 16:34:01 -35.998257 0.000000 BFGS: 16 16:34:01 -35.998257 0.000000 Minimization converged after 16 steps. Maximum force component: 9.034815470196629e-10 eV/Angstrom Maximum stress component: 1.5821525477616162e-10 eV/Angstrom^3 ==== Minimized structure obtained from ASE ==== symbols = ['Si', 'Si', 'Si', 'Si', 'Si', 'Si', 'Si', 'Si'] basis = [[0.8191065 0.8191065 0. ] [0.1808935 0.1808935 0. ] [0.1808935 0.8191065 0. ] [0.8191065 0.1808935 0. ] [0.3191065 0.3191065 0.5 ] [0.6808935 0.6808935 0.5 ] [0.6808935 0.3191065 0.5 ] [0.3191065 0.6808935 0.5 ]] cellpar = Cell([[6.620246426254024, 2.993924417821962e-36, 1.3173078963202273e-35], [1.5068487153008028e-36, 6.620246426254025, -1.927059370054745e-18], [7.447882575094592e-33, -1.1236066022653024e-18, 3.885751431735478]]) forces = [[ 9.03481547e-10 9.03481547e-10 -2.62942705e-28] [-9.03481547e-10 -9.03481547e-10 2.62864874e-28] [-9.03481547e-10 9.03481547e-10 -2.62942705e-28] [ 9.03481547e-10 -9.03481547e-10 2.62939711e-28] [ 9.03481547e-10 9.03481547e-10 -2.62918757e-28] [-9.03481547e-10 -9.03481547e-10 2.62918757e-28] [-9.03481547e-10 9.03481547e-10 -2.62906783e-28] [ 9.03481547e-10 -9.03481547e-10 2.62954678e-28]] stress = [ 1.58215255e-10 1.58215255e-10 -5.66029025e-11 1.67196114e-26 1.91659910e-33 -3.23794881e-49] energy per atom = -4.499782104358607 =============================================== Parameter sets [0] relaxed to duplicate structures, attempting to write only one of them. Successfully added property instance for parameter set 0