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: SW_LeeHwang_2012GGA_Si__MO_040570764911_001 ==== 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 16:31:32 -21.440253 0.808282 BFGS: 1 16:31:32 -21.498924 0.381610 BFGS: 2 16:31:32 -21.515652 0.419845 BFGS: 3 16:31:32 -21.519625 0.408255 BFGS: 4 16:31:32 -21.531761 0.321323 BFGS: 5 16:31:32 -21.541835 0.192769 BFGS: 6 16:31:32 -21.547592 0.118198 BFGS: 7 16:31:32 -21.549087 0.096476 BFGS: 8 16:31:32 -21.549521 0.077377 BFGS: 9 16:31:32 -21.550056 0.056457 BFGS: 10 16:31:32 -21.551223 0.078205 BFGS: 11 16:31:32 -21.552841 0.084149 BFGS: 12 16:31:32 -21.554128 0.049615 BFGS: 13 16:31:32 -21.554491 0.011730 BFGS: 14 16:31:32 -21.554520 0.001496 BFGS: 15 16:31:32 -21.554521 0.000062 BFGS: 16 16:31:32 -21.554521 0.000007 BFGS: 17 16:31:32 -21.554521 0.000000 BFGS: 18 16:31:32 -21.554521 0.000000 BFGS: 19 16:31:32 -21.554521 0.000000 Minimization converged after 19 steps. Maximum force component: 2.5923845249555427e-09 eV/Angstrom Maximum stress component: 1.7913691504765891e-10 eV/Angstrom^3 ==== Minimized structure obtained from ASE ==== symbols = ['Si', 'Si', 'Si', 'Si', 'Si', 'Si', 'Si', 'Si'] basis = [[8.18574130e-01 8.18574130e-01 1.94529611e-34] [1.81425870e-01 1.81425870e-01 0.00000000e+00] [1.81425870e-01 8.18574130e-01 1.94529611e-34] [8.18574130e-01 1.81425870e-01 0.00000000e+00] [3.18574130e-01 3.18574130e-01 5.00000000e-01] [6.81425870e-01 6.81425870e-01 5.00000000e-01] [6.81425870e-01 3.18574130e-01 5.00000000e-01] [3.18574130e-01 6.81425870e-01 5.00000000e-01]] cellpar = Cell([[6.691231412041313, 2.9391323277350806e-36, -1.4652850691326002e-33], [1.1948715513066232e-36, 6.691231412041314, 7.38527900022101e-18], [1.8393651330735608e-32, 4.284803754678588e-18, 3.9601784825018984]]) forces = [[-2.59238452e-09 -2.59238452e-09 -2.86127336e-27] [ 2.59238452e-09 2.59238452e-09 2.86127946e-27] [ 2.59238452e-09 -2.59238452e-09 -2.86127946e-27] [-2.59238452e-09 2.59238452e-09 2.86127946e-27] [-2.59238452e-09 -2.59238452e-09 -2.86126726e-27] [ 2.59238452e-09 2.59238452e-09 2.86127336e-27] [ 2.59238452e-09 -2.59238452e-09 -2.86127946e-27] [-2.59238452e-09 2.59238452e-09 2.86127946e-27]] stress = [ 1.77780061e-11 1.77780061e-11 1.79136915e-10 2.72106180e-26 -5.81446367e-35 -7.90433272e-51] energy per atom = -2.6943150744960467 =============================================== Parameter sets [0] relaxed to duplicate structures, attempting to write only one of them. Successfully added property instance for parameter set 0