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: SW_ZhangXieHu_2014OptimizedSW1_Si__MO_800412945727_005 ==== 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 12:59:56 -6.606433 1.760398 BFGS: 1 12:59:56 -6.643145 1.009936 BFGS: 2 12:59:56 -6.651622 0.541132 BFGS: 3 12:59:56 -6.660035 0.325215 BFGS: 4 12:59:56 -6.664641 0.236185 BFGS: 5 12:59:56 -6.665901 0.059197 BFGS: 6 12:59:56 -6.665958 0.007406 BFGS: 7 12:59:56 -6.665959 0.000843 BFGS: 8 12:59:56 -6.665959 0.000037 BFGS: 9 12:59:56 -6.665959 0.000003 BFGS: 10 12:59:56 -6.665959 0.000000 BFGS: 11 12:59:56 -6.665959 0.000000 Minimization converged after 11 steps. Maximum force component: 3.1054631690717015e-32 eV/Angstrom Maximum stress component: 9.560695442148288e-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([[2.7484920438181715, 4.766672285063056e-18, 3.614497480318642e-37], [-1.3742460219090857, 2.380263932045949, -1.7384581942640556e-36], [-2.2536750239436456e-36, 3.984829593084948e-36, 4.488268713040207]]) forces = [[ 1.97620383e-32 -1.46695091e-32 -9.22036385e-33] [-3.10546317e-32 1.46695091e-32 9.22036385e-33]] stress = [ 7.80251953e-11 7.80251953e-11 9.56069544e-11 -4.61505079e-33 -2.66450082e-33 -3.31110238e-27] energy per atom = -3.3329792757147487 =============================================== Parameter sets [0] relaxed to duplicate structures, attempting to write only one of them. Successfully added property instance for parameter set 0