element(s): ['Si'] AFLOW prototype label: A_hP4_194_f Parameter names: ['a', 'c/a', 'z1'] model type (only 'standard' supported at this time): standard number of parameter sets: 1 Parameter values for parameter set 0: ['3.8496', '1.6527431', '0.56294015'] model name: ThreeBodyCluster_Gong_Gong_1993_Si__MO_407755720412_000 ==== Building ASE atoms object with: ==== representative atom symbols = ['Si'] representative atom coordinates = [[0.33333333 0.66666667 0.56294015]] spacegroup = 194 cell = [[3.8496, 0, 0], [-1.9248, 3.3338513944086, 0], [0, 0, 6.3624]] ========================================= Step Time Energy fmax BFGS: 0 13:49:10 -18.546444 0.4343 BFGS: 1 13:49:10 -18.550301 0.3466 BFGS: 2 13:49:10 -18.556853 0.1375 BFGS: 3 13:49:10 -18.558197 0.1138 BFGS: 4 13:49:10 -18.559212 0.0391 BFGS: 5 13:49:10 -18.559309 0.0423 BFGS: 6 13:49:10 -18.559527 0.0458 BFGS: 7 13:49:10 -18.559761 0.0428 BFGS: 8 13:49:10 -18.559948 0.0284 BFGS: 9 13:49:10 -18.559995 0.0089 BFGS: 10 13:49:10 -18.560000 0.0008 BFGS: 11 13:49:10 -18.560000 0.0001 BFGS: 12 13:49:11 -18.560000 0.0000 BFGS: 13 13:49:11 -18.560000 0.0000 BFGS: 14 13:49:11 -18.560000 0.0000 Minimization converged after 14 steps. Maximum force component: 8.635732052347106e-10 eV/Angstrom Maximum stress component: 4.885131327188367e-11 eV/Angstrom^3 ==== Minimized structure obtained from ASE ==== symbols = ['Si', 'Si', 'Si', 'Si'] basis = [[0.33333333 0.66666667 0.5625 ] [0.66666666 0.33333334 0.0625 ] [0.66666666 0.33333334 0.4375 ] [0.33333333 0.66666667 0.9375 ]] cellpar = Cell([[3.8402614165776043, -4.056101874277192e-19, 2.456559416978398e-38], [-1.9201307082888022, 3.325763943929418, 7.46914546367975e-39], [1.8067206396699094e-36, 6.877044947836362e-36, 6.271120633458491]]) forces = [[-3.15565843e-31 1.09315215e-31 -8.63573205e-10] [ 5.04905350e-31 -9.47066166e-46 -8.63573205e-10] [ 6.31131687e-32 -1.09315215e-31 8.63573205e-10] [-5.04905350e-31 9.47066166e-46 8.63573205e-10]] stress = [ 3.55300374e-11 3.55300374e-11 4.88513133e-11 -8.66792821e-33 -2.64631353e-47 1.09479220e-26] energy per atom = -4.639999999911474 =============================================== Parameter sets [0] relaxed to duplicate structures, attempting to write only one of them. Successfully added property instance for parameter set 0