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_SRS_StephensonRadnySmith_1996_Si__MO_604248666067_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 16:26:22 -21.068368 0.292957 BFGS: 1 16:26:22 -21.070549 0.247906 BFGS: 2 16:26:22 -21.075827 0.099631 BFGS: 3 16:26:22 -21.076563 0.086505 BFGS: 4 16:26:22 -21.077477 0.015640 BFGS: 5 16:26:22 -21.077503 0.020542 BFGS: 6 16:26:22 -21.077541 0.027710 BFGS: 7 16:26:22 -21.077617 0.034622 BFGS: 8 16:26:22 -21.077756 0.036768 BFGS: 9 16:26:22 -21.077903 0.026609 BFGS: 10 16:26:22 -21.077972 0.011812 BFGS: 11 16:26:22 -21.077984 0.002130 BFGS: 12 16:26:22 -21.077985 0.000108 BFGS: 13 16:26:22 -21.077985 0.000017 BFGS: 14 16:26:22 -21.077985 0.000001 BFGS: 15 16:26:22 -21.077985 0.000000 Minimization converged after 15 steps. Maximum force component: 7.892986819690863e-09 eV/Angstrom Maximum stress component: 2.0147973796023363e-10 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([[3.8395928898546443, -8.892732021847752e-19, -6.0333632403883025e-37], [-1.9197964449273222, 3.3251849828042257, 4.78094504737633e-37], [-1.0707847896395223e-36, 4.192519229315744e-36, 6.2700289379395535]]) forces = [[-3.15510909e-31 2.18592370e-31 -7.89298682e-09] [ 1.26204363e-31 -5.27775591e-45 -7.89298682e-09] [ 3.15510909e-31 -2.18592370e-31 7.89298682e-09] [-1.26204363e-31 5.27775591e-45 7.89298682e-09]] stress = [-3.84844189e-11 -3.84844189e-11 -2.01479738e-10 9.85334873e-34 3.41330012e-34 -1.11883673e-26] energy per atom = -5.269496210193664 =============================================== Parameter sets [0] relaxed to duplicate structures, attempting to write only one of them. Successfully added property instance for parameter set 0