element(s): ['Sn'] AFLOW prototype label: A_tI2_139_a Parameter names: ['a', 'c/a'] model type (only 'standard' supported at this time): standard number of parameter sets: 2 Parameter values for parameter set 0: ['4.0868', '0.85281883'] Parameter values for parameter set 1: ['3.4699', '1.4037869'] model name: LJ_ElliottAkerson_2015_Universal__MO_959249795837_003 ==== Building ASE atoms object with: ==== representative atom symbols = ['Sn'] representative atom coordinates = [[0 0 0]] spacegroup = 139 cell = [[4.0868, 0, 0], [0, 4.0868, 0], [0, 0, 3.4853]] ========================================= Step Time Energy fmax BFGS: 0 17:10:21 -12.775569 11.6388 BFGS: 1 17:10:21 -14.500595 13.1035 BFGS: 2 17:10:21 -16.439259 14.5896 BFGS: 3 17:10:21 -18.594623 16.0039 BFGS: 4 17:10:21 -20.967243 17.1911 BFGS: 5 17:10:21 -23.491999 17.6443 BFGS: 6 17:10:21 -26.049874 16.7333 BFGS: 7 17:10:21 -28.277113 14.2820 BFGS: 8 17:10:21 -29.819128 8.8722 BFGS: 9 17:10:21 -30.343867 1.2127 BFGS: 10 17:10:22 -30.349274 0.2201 BFGS: 11 17:10:22 -30.350489 0.0786 BFGS: 12 17:10:22 -30.350630 0.0070 BFGS: 13 17:10:22 -30.350631 0.0005 BFGS: 14 17:10:22 -30.350631 0.0000 BFGS: 15 17:10:22 -30.350631 0.0000 BFGS: 16 17:10:22 -30.350631 0.0000 Minimization converged after 16 steps. Maximum force component: 0.0 eV/Angstrom Maximum stress component: 5.234098665365623e-10 eV/Angstrom^3 ==== Minimized structure obtained from ASE ==== symbols = ['Sn', 'Sn'] basis = [[0. 0. 0. ] [0.5 0.5 0.5]] cellpar = Cell([[3.1811974808418997, 2.4266237505175016e-34, 1.736362409452571e-32], [2.3010645236302135e-34, 3.1811974808419023, -1.347496588536606e-16], [2.1306147606310087e-33, -1.0957544662397601e-16, 2.8295284704604216]]) forces = [[0. 0. 0.] [0. 0. 0.]] stress = [-5.23409867e-10 -5.23409867e-10 -2.97395178e-10 6.57333043e-26 1.36935408e-32 -1.01610251e-48] energy per atom = -15.17531558454333 =============================================== ==== Building ASE atoms object with: ==== representative atom symbols = ['Sn'] representative atom coordinates = [[0 0 0]] spacegroup = 139 cell = [[3.4699, 0, 0], [0, 3.4699, 0], [0, 0, 4.871]] ========================================= Step Time Energy fmax BFGS: 0 17:10:23 -12.574005 11.1726 BFGS: 1 17:10:23 -14.362138 12.6904 BFGS: 2 17:10:23 -16.385467 14.3617 BFGS: 3 17:10:23 -18.657698 15.9600 BFGS: 4 17:10:23 -21.156415 17.4104 BFGS: 5 17:10:23 -23.832671 18.2860 BFGS: 6 17:10:23 -26.560566 18.0974 BFGS: 7 17:10:23 -29.094360 15.7508 BFGS: 8 17:10:23 -31.014581 9.6539 BFGS: 9 17:10:23 -31.611883 2.7251 BFGS: 10 17:10:23 -31.641172 0.7968 BFGS: 11 17:10:23 -31.644129 0.0439 BFGS: 12 17:10:23 -31.644138 0.0008 BFGS: 13 17:10:23 -31.644138 0.0000 BFGS: 14 17:10:23 -31.644138 0.0000 BFGS: 15 17:10:23 -31.644138 0.0000 Minimization converged after 15 steps. Maximum force component: 0.0 eV/Angstrom Maximum stress component: 1.3225929419219602e-10 eV/Angstrom^3 ==== Minimized structure obtained from ASE ==== symbols = ['Sn', 'Sn'] basis = [[0. 0. 0. ] [0.5 0.5 0.5]] cellpar = Cell([[2.7034319560272353, 3.2913872448340867e-35, 9.913376960650034e-33], [2.0101323427840485e-34, 2.703431956027233, 1.8342809893844578e-16], [-1.605051074128524e-33, 6.020342975640755e-16, 3.823230137159295]]) forces = [[0. 0. 0.] [0. 0. 0.]] stress = [ 1.32259294e-10 1.32259294e-10 1.21736130e-10 -6.75948516e-26 -9.54035560e-33 2.99584808e-48] energy per atom = -15.82206887606445 =============================================== Parameter sets [0] relaxed to duplicate structures, attempting to write only one of them. Successfully added property instance for parameter set 0 Parameter sets [1] relaxed to duplicate structures, attempting to write only one of them. Prototype label changed during relaxation: test template prototype is A_tI2_139_a, while relaxed is A_cF4_225_a. Skipping parameter set 1. No parameter sets in this group successfully added a property instance. Skipping this group.