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 15:31:42 -15.416030 2.187700 BFGS: 1 15:31:42 -15.599452 1.732179 BFGS: 2 15:31:42 -15.809378 1.080526 BFGS: 3 15:31:42 -15.927074 0.498614 BFGS: 4 15:31:42 -15.959748 0.015064 BFGS: 5 15:31:42 -15.959780 0.000773 BFGS: 6 15:31:42 -15.959780 0.000002 BFGS: 7 15:31:42 -15.959780 0.000000 Minimization converged after 7 steps. Maximum force component: 0.0 eV/Angstrom Maximum stress component: 1.0338368280067611e-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 1.14476542e-33 5.00000000e-01] [5.00000000e-01 5.00000000e-01 3.81588473e-34]] cellpar = Cell([[4.03771095444792, -8.167655678990718e-33, -7.184564959478239e-33], [5.996168714058016e-34, 4.03771095444792, 1.5788659212413316e-17], [-2.0049846235629307e-32, 1.5788659212413322e-17, 4.03771095444792]]) forces = [[0. 0. 0.] [0. 0. 0.] [0. 0. 0.] [0. 0. 0.]] stress = [-1.03383683e-11 -1.03383683e-11 -1.03383683e-11 -1.35853812e-29 -7.87551158e-36 4.07626546e-53] energy per atom = -3.989944912414813 =============================================== Parameter sets [0] relaxed to duplicate structures, attempting to write only one of them. Successfully added property instance for parameter set 0