element(s): ['Si'] AFLOW prototype label: A_cF4_225_a Parameter names: ['a'] model type (only 'standard' supported at this time): standard number of parameter sets: 1 Parameter values for parameter set 0: ['3.868'] model name: ThreeBodyBondOrder_WR_WangRockett_1991_Si__MO_081872846741_000 ==== Building ASE atoms object with: ==== representative atom symbols = ['Si'] representative atom coordinates = [[0 0 0]] spacegroup = 225 cell = [[3.868, 0, 0], [0, 3.868, 0], [0, 0, 3.868]] ========================================= Step Time Energy fmax BFGS: 0 15:41:02 -15.416030 2.187700 BFGS: 1 15:41:02 -15.599452 1.732179 BFGS: 2 15:41:02 -15.809378 1.080526 BFGS: 3 15:41:02 -15.927074 0.498614 BFGS: 4 15:41:02 -15.959748 0.015064 BFGS: 5 15:41:02 -15.959780 0.000773 BFGS: 6 15:41:02 -15.959780 0.000002 BFGS: 7 15:41:02 -15.959780 0.000000 Minimization converged after 7 steps. Maximum force component: 0.0 eV/Angstrom Maximum stress component: 1.033867495765212e-11 eV/Angstrom^3 ==== Minimized structure obtained from ASE ==== symbols = ['Si', 'Si', 'Si', 'Si'] basis = [[0.00000000e+00 0.00000000e+00 0.00000000e+00] [0.00000000e+00 5.00000000e-01 5.00000000e-01] [5.00000000e-01 3.81588473e-34 5.00000000e-01] [5.00000000e-01 5.00000000e-01 3.81588473e-34]] cellpar = Cell([[4.037710954447919, 8.7353819658527e-33, -1.2480256243702128e-32], [7.382951523077893e-33, 4.037710954447919, 1.6381927073395287e-17], [-3.101962199100004e-32, 1.6381927073395303e-17, 4.037710954447919]]) forces = [[0. 0. 0.] [0. 0. 0.] [0. 0. 0.] [0. 0. 0.]] stress = [-1.03386750e-11 -1.03386750e-11 -1.03386750e-11 -2.10485126e-27 -2.60876321e-35 -2.82367734e-51] energy per atom = -3.9899449124148187 =============================================== Parameter sets [0] relaxed to duplicate structures, attempting to write only one of them. Successfully added property instance for parameter set 0