element(s): ['Si'] AFLOW prototype label: A_hP2_194_c Parameter names: ['a', 'c/a'] model type (only 'standard' supported at this time): standard number of parameter sets: 1 Parameter values for parameter set 0: ['2.6864', '1.708383'] model name: ThreeBodyCluster_KP_KaxirasPandey_1988_Si__MO_072486242437_000 ==== Building ASE atoms object with: ==== representative atom symbols = ['Si'] representative atom coordinates = [[0.33333333 0.66666667 0.25 ]] spacegroup = 194 cell = [[2.6864, 0, 0], [-1.3432, 2.3264906447265, 0], [0, 0, 4.5894]] ========================================= Step Time Energy fmax BFGS: 0 15:10:11 -5.616754 6.8025 BFGS: 1 15:10:11 -6.398622 4.7172 BFGS: 2 15:10:11 -6.794287 3.2611 BFGS: 3 15:10:11 -7.104420 2.0213 BFGS: 4 15:10:11 -7.266120 1.0506 BFGS: 5 15:10:11 -7.319429 0.3508 BFGS: 6 15:10:11 -7.322653 0.2044 BFGS: 7 15:10:11 -7.324246 0.1705 BFGS: 8 15:10:11 -7.328715 0.2410 BFGS: 9 15:10:11 -7.335095 0.2509 BFGS: 10 15:10:11 -7.340057 0.1447 BFGS: 11 15:10:11 -7.341498 0.0606 BFGS: 12 15:10:11 -7.341825 0.0037 BFGS: 13 15:10:11 -7.341828 0.0002 BFGS: 14 15:10:11 -7.341828 0.0000 BFGS: 15 15:10:11 -7.341828 0.0000 Minimization converged after 15 steps. Maximum force component: 4.459245667228608e-33 eV/Angstrom Maximum stress component: 5.7728158627988116e-11 eV/Angstrom^3 ==== Minimized structure obtained from ASE ==== symbols = ['Si', 'Si'] basis = [[0.33333333 0.66666667 0.25 ] [0.66666666 0.33333334 0.75 ]] cellpar = Cell([[2.8942159086732677, 2.3920910403055773e-17, -5.604474853096134e-37], [-1.4471079543366339, 2.5064645009481126, 3.0442142823221344e-36], [-1.697099316528752e-35, -4.3225177930415904e-35, 5.449625777224348]]) forces = [[-4.45924567e-33 2.57454669e-33 3.70257389e-69] [ 4.45924567e-33 -2.57454669e-33 -3.70257389e-69]] stress = [-3.14651738e-11 -3.14651738e-11 -5.77281586e-11 -3.00795245e-33 -1.04198529e-33 7.43495351e-27] energy per atom = -3.670913756542002 =============================================== Parameter sets [0] relaxed to duplicate structures, attempting to write only one of them. Successfully added property instance for parameter set 0