element(s): ['Sn'] AFLOW prototype label: A_cF8_227_a Parameter names: ['a'] model type (only 'standard' supported at this time): standard number of parameter sets: 1 Parameter values for parameter set 0: ['6.7273'] model name: MEAM_LAMMPS_VellaChenStillinger_2017_Sn__MO_316045643888_002 ==== Building ASE atoms object with: ==== representative atom symbols = ['Sn'] representative atom coordinates = [[0 0 0]] spacegroup = 227 cell = [[6.7273, 0, 0], [0, 6.7273, 0], [0, 0, 6.7273]] ========================================= Step Time Energy fmax BFGS: 0 15:31:09 -24.625163 1.336357 BFGS: 1 15:31:09 -24.700719 1.301927 BFGS: 2 15:31:09 -24.888952 1.206582 BFGS: 3 15:31:09 -25.062303 1.103437 BFGS: 4 15:31:09 -25.219572 0.992078 BFGS: 5 15:31:09 -25.359495 0.872073 BFGS: 6 15:31:09 -25.480739 0.742968 BFGS: 7 15:31:09 -25.581907 0.604291 BFGS: 8 15:31:09 -25.661523 0.455547 BFGS: 9 15:31:09 -25.718041 0.296218 BFGS: 10 15:31:09 -25.749833 0.125766 BFGS: 11 15:31:09 -25.756439 0.007462 BFGS: 12 15:31:09 -25.756462 0.000172 BFGS: 13 15:31:09 -25.756462 0.000000 BFGS: 14 15:31:09 -25.756462 0.000000 Minimization converged after 14 steps. Maximum force component: 4.079080560166021e-31 eV/Angstrom Maximum stress component: 2.0667064355461428e-13 eV/Angstrom^3 ==== Minimized structure obtained from ASE ==== symbols = ['Sn', 'Sn', 'Sn', 'Sn', 'Sn', 'Sn', 'Sn', 'Sn'] basis = [[0.00000000e+00 0.00000000e+00 0.00000000e+00] [1.02761506e-33 5.00000000e-01 5.00000000e-01] [5.00000000e-01 5.00000000e-01 0.00000000e+00] [5.00000000e-01 0.00000000e+00 5.00000000e-01] [7.50000000e-01 2.50000000e-01 7.50000000e-01] [2.50000000e-01 2.50000000e-01 2.50000000e-01] [2.50000000e-01 7.50000000e-01 7.50000000e-01] [7.50000000e-01 7.50000000e-01 2.50000000e-01]] cellpar = Cell([[6.303511064958486, -1.2233652679330366e-33, 9.050081725459359e-33], [-3.517433950908243e-33, 6.303511064958486, 3.034658489525289e-17], [-1.0503078847931424e-32, 3.0346584895252924e-17, 6.303511064958486]]) forces = [[ 2.13666125e-31 -3.17261821e-31 -1.29494621e-31] [-3.88483863e-32 -5.17978484e-32 -2.71938704e-31] [ 7.76967726e-32 1.29494621e-32 -1.68343007e-31] [ 3.88483863e-32 -5.17978484e-32 -2.49367025e-49] [ 1.03595697e-31 -1.29494621e-31 -1.58226240e-31] [ 2.42802414e-32 -2.58989242e-32 5.17978484e-32] [ 1.29494621e-31 4.07908056e-31 1.03595697e-31] [ 7.76967726e-32 -5.34165311e-32 7.76967726e-32]] stress = [-2.06670644e-13 -2.06670644e-13 -2.06670644e-13 2.14391326e-29 2.06806489e-34 -8.42933602e-51] energy per atom = -3.219557717437279 =============================================== Parameter sets [0] relaxed to duplicate structures, attempting to write only one of them. Successfully added property instance for parameter set 0