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: ThreeBodyCluster_SRS_StephensonRadnySmith_1996_Si__MO_604248666067_000 ==== 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 17:33:01 -40.177397 1.833096 BFGS: 1 17:33:01 -40.511771 0.936272 BFGS: 2 17:33:01 -40.625709 0.784378 BFGS: 3 17:33:01 -40.643659 0.695570 BFGS: 4 17:33:01 -40.663208 0.577975 BFGS: 5 17:33:01 -40.694304 0.366688 BFGS: 6 17:33:01 -40.713870 0.188899 BFGS: 7 17:33:01 -40.720541 0.077562 BFGS: 8 17:33:01 -40.721242 0.099826 BFGS: 9 17:33:01 -40.722442 0.128952 BFGS: 10 17:33:01 -40.724269 0.148249 BFGS: 11 17:33:01 -40.728685 0.177844 BFGS: 12 17:33:01 -40.734277 0.196082 BFGS: 13 17:33:01 -40.738770 0.138394 BFGS: 14 17:33:01 -40.740560 0.046676 BFGS: 15 17:33:01 -40.740784 0.009049 BFGS: 16 17:33:01 -40.740804 0.000635 BFGS: 17 17:33:01 -40.740805 0.000113 BFGS: 18 17:33:01 -40.740805 0.000004 BFGS: 19 17:33:01 -40.740805 0.000000 BFGS: 20 17:33:01 -40.740805 0.000000 BFGS: 21 17:33:01 -40.740805 0.000000 Minimization converged after 21 steps. Maximum force component: 9.384967573043692e-10 eV/Angstrom Maximum stress component: 2.137529526611898e-11 eV/Angstrom^3 ==== Minimized structure obtained from ASE ==== symbols = ['Si', 'Si', 'Si', 'Si', 'Si', 'Si', 'Si', 'Si'] basis = [[8.14775371e-01 8.14775371e-01 0.00000000e+00] [1.85224629e-01 1.85224629e-01 1.52708391e-33] [1.85224629e-01 8.14775371e-01 0.00000000e+00] [8.14775371e-01 1.85224629e-01 0.00000000e+00] [3.14775371e-01 3.14775371e-01 5.00000000e-01] [6.85224629e-01 6.85224629e-01 5.00000000e-01] [6.85224629e-01 3.14775371e-01 5.00000000e-01] [3.14775371e-01 6.85224629e-01 5.00000000e-01]] cellpar = Cell([[6.687877094449139, 2.237812100787096e-35, -3.1151880998820525e-33], [1.1228646337344231e-35, 6.687877094449135, -3.6715322553475696e-18], [4.112971219456817e-33, -2.2121931329237913e-18, 4.035780727323873]]) forces = [[ 9.38496757e-10 9.38496757e-10 -5.15194093e-28] [-9.38496757e-10 -9.38496757e-10 5.15218965e-28] [-9.38496757e-10 9.38496757e-10 -5.15318455e-28] [ 9.38496757e-10 -9.38496757e-10 5.15268710e-28] [ 9.38496757e-10 9.38496757e-10 -5.15268710e-28] [-9.38496757e-10 -9.38496757e-10 5.15144348e-28] [-9.38496757e-10 9.38496757e-10 -5.15268710e-28] [ 9.38496757e-10 -9.38496757e-10 5.15318455e-28]] stress = [ 2.13752953e-11 2.13752953e-11 -1.79970789e-11 -5.97719383e-27 7.84905415e-35 1.21698413e-50] energy per atom = -5.092600590492089 =============================================== Parameter sets [0] relaxed to duplicate structures, attempting to write only one of them. Successfully added property instance for parameter set 0