Element = Lattice = Model = Element: Ag Lattice: hcp Model: Morse_Shifted_GirifalcoWeizer_1959LowCutoff_Ag__MO_137719994600_004 Computed model cutoff of 6.983380002230427 Angstroms Computed isolated atomic energy of 0.0 eV for species Ag ============================================================================== ============================================================================== Starting optimization to find optimum lattice constant 'a' with c/a fixed to sqrt(8/3) ============================================================================== ============================================================================== Attempting to perform relaxation using initial lattice constant guess of a = 1.0 Angstroms (c/a fixed at sqrt(8/3)) Optimization terminated successfully. Current function value: -11.276034 Iterations: 41 Function evaluations: 86 Results for this minimization: a = 2.8976974584162285, total energy = -11.276033594718783 Attempting to perform relaxation using initial lattice constant guess of a = 1.125 Angstroms (c/a fixed at sqrt(8/3)) Optimization terminated successfully. Current function value: -11.276034 Iterations: 39 Function evaluations: 85 Results for this minimization: a = 2.8976974457502367, total energy = -11.276033594718774 Attempting to perform relaxation using initial lattice constant guess of a = 1.25 Angstroms (c/a fixed at sqrt(8/3)) Optimization terminated successfully. Current function value: -11.276034 Iterations: 39 Function evaluations: 84 Results for this minimization: a = 2.897697478416376, total energy = -11.276033594718767 Attempting to perform relaxation using initial lattice constant guess of a = 1.375 Angstroms (c/a fixed at sqrt(8/3)) Optimization terminated successfully. Current function value: -11.276034 Iterations: 38 Function evaluations: 82 Results for this minimization: a = 2.897697455668829, total energy = -11.27603359471879 Attempting to perform relaxation using initial lattice constant guess of a = 1.5 Angstroms (c/a fixed at sqrt(8/3)) Optimization terminated successfully. Current function value: -11.276034 Iterations: 38 Function evaluations: 82 Results for this minimization: a = 2.8976974722929327, total energy = -11.27603359471877 Attempting to perform relaxation using initial lattice constant guess of a = 1.625 Angstroms (c/a fixed at sqrt(8/3)) Optimization terminated successfully. Current function value: -11.276034 Iterations: 37 Function evaluations: 82 Results for this minimization: a = 2.8976974554359933, total energy = -11.276033594718788 Attempting to perform relaxation using initial lattice constant guess of a = 1.75 Angstroms (c/a fixed at sqrt(8/3)) Optimization terminated successfully. Current function value: -11.276034 Iterations: 39 Function evaluations: 84 Results for this minimization: a = 2.8976974302437166, total energy = -11.276033594718768 Attempting to perform relaxation using initial lattice constant guess of a = 1.875 Angstroms (c/a fixed at sqrt(8/3)) Optimization terminated successfully. Current function value: -11.276034 Iterations: 37 Function evaluations: 79 Results for this minimization: a = 2.8976974859833717, total energy = -11.276033594718758 Attempting to perform relaxation using initial lattice constant guess of a = 2.0 Angstroms (c/a fixed at sqrt(8/3)) Optimization terminated successfully. Current function value: -11.276034 Iterations: 36 Function evaluations: 76 Results for this minimization: a = 2.8976974606514005, total energy = -11.276033594718784 Attempting to perform relaxation using initial lattice constant guess of a = 2.125 Angstroms (c/a fixed at sqrt(8/3)) Optimization terminated successfully. Current function value: -11.276034 Iterations: 36 Function evaluations: 77 Results for this minimization: a = 2.8976974800229085, total energy = -11.276033594718776 Attempting to perform relaxation using initial lattice constant guess of a = 2.25 Angstroms (c/a fixed at sqrt(8/3)) Optimization terminated successfully. Current function value: -11.276034 Iterations: 35 Function evaluations: 76 Results for this minimization: a = 2.8976974591612823, total energy = -11.276033594718776 Attempting to perform relaxation using initial lattice constant guess of a = 2.375 Angstroms (c/a fixed at sqrt(8/3)) Optimization terminated successfully. Current function value: -11.276034 Iterations: 35 Function evaluations: 75 Results for this minimization: a = 2.8976974604302077, total energy = -11.27603359471878 Attempting to perform relaxation using initial lattice constant guess of a = 2.5 Angstroms (c/a fixed at sqrt(8/3)) Optimization terminated successfully. Current function value: -11.276034 Iterations: 34 Function evaluations: 74 Results for this minimization: a = 2.897697485052049, total energy = -11.276033594718758 Attempting to perform relaxation using initial lattice constant guess of a = 2.625 Angstroms (c/a fixed at sqrt(8/3)) Optimization terminated successfully. Current function value: -11.276034 Iterations: 36 Function evaluations: 77 Results for this minimization: a = 2.897697472537402, total energy = -11.276033594718768 Attempting to perform relaxation using initial lattice constant guess of a = 2.75 Angstroms (c/a fixed at sqrt(8/3)) Optimization terminated successfully. Current function value: -11.276034 Iterations: 33 Function evaluations: 70 Results for this minimization: a = 2.89769747001119, total energy = -11.276033594718776 Attempting to perform relaxation using initial lattice constant guess of a = 2.875 Angstroms (c/a fixed at sqrt(8/3)) Optimization terminated successfully. Current function value: -11.276034 Iterations: 32 Function evaluations: 69 Results for this minimization: a = 2.8976974532008164, total energy = -11.27603359471877 Attempting to perform relaxation using initial lattice constant guess of a = 3.0 Angstroms (c/a fixed at sqrt(8/3)) Optimization terminated successfully. Current function value: -11.276034 Iterations: 34 Function evaluations: 73 Results for this minimization: a = 2.8976974770426747, total energy = -11.276033594718772 Attempting to perform relaxation using initial lattice constant guess of a = 3.125 Angstroms (c/a fixed at sqrt(8/3)) Optimization terminated successfully. Current function value: -11.276034 Iterations: 34 Function evaluations: 74 Results for this minimization: a = 2.897697453154251, total energy = -11.276033594718784 Attempting to perform relaxation using initial lattice constant guess of a = 3.25 Angstroms (c/a fixed at sqrt(8/3)) Optimization terminated successfully. Current function value: -11.276034 Iterations: 35 Function evaluations: 77 Results for this minimization: a = 2.8976974545279512, total energy = -11.276033594718784 Attempting to perform relaxation using initial lattice constant guess of a = 3.375 Angstroms (c/a fixed at sqrt(8/3)) Optimization terminated successfully. Current function value: -11.276034 Iterations: 34 Function evaluations: 73 Results for this minimization: a = 2.8976974541321385, total energy = -11.276033594718786 Attempting to perform relaxation using initial lattice constant guess of a = 3.5 Angstroms (c/a fixed at sqrt(8/3)) Optimization terminated successfully. Current function value: -11.276034 Iterations: 36 Function evaluations: 76 Results for this minimization: a = 2.8976974670775233, total energy = -11.276033594718772 Attempting to perform relaxation using initial lattice constant guess of a = 3.625 Angstroms (c/a fixed at sqrt(8/3)) Optimization terminated successfully. Current function value: -11.276034 Iterations: 38 Function evaluations: 83 Results for this minimization: a = 2.8976974648423486, total energy = -11.276033594718779 Attempting to perform relaxation using initial lattice constant guess of a = 3.75 Angstroms (c/a fixed at sqrt(8/3)) Optimization terminated successfully. Current function value: -11.276034 Iterations: 36 Function evaluations: 78 Results for this minimization: a = 2.8976974859833717, total energy = -11.276033594718754 Attempting to perform relaxation using initial lattice constant guess of a = 3.875 Angstroms (c/a fixed at sqrt(8/3)) Optimization terminated successfully. Current function value: -11.276034 Iterations: 35 Function evaluations: 74 Results for this minimization: a = 2.8976974859833695, total energy = -11.276033594718749 Attempting to perform relaxation using initial lattice constant guess of a = 4.0 Angstroms (c/a fixed at sqrt(8/3)) Optimization terminated successfully. Current function value: -11.276034 Iterations: 37 Function evaluations: 79 Results for this minimization: a = 2.8976974593475457, total energy = -11.276033594718772 Attempting to perform relaxation using initial lattice constant guess of a = 4.125 Angstroms (c/a fixed at sqrt(8/3)) Optimization terminated successfully. Current function value: -11.276034 Iterations: 37 Function evaluations: 79 Results for this minimization: a = 2.8976974729564975, total energy = -11.27603359471876 Attempting to perform relaxation using initial lattice constant guess of a = 4.25 Angstroms (c/a fixed at sqrt(8/3)) Optimization terminated successfully. Current function value: -11.276034 Iterations: 37 Function evaluations: 78 Results for this minimization: a = 2.897697480022905, total energy = -11.276033594718774 Attempting to perform relaxation using initial lattice constant guess of a = 4.375 Angstroms (c/a fixed at sqrt(8/3)) Optimization terminated successfully. Current function value: -11.276034 Iterations: 37 Function evaluations: 79 Results for this minimization: a = 2.897697472741129, total energy = -11.276033594718767 Attempting to perform relaxation using initial lattice constant guess of a = 4.5 Angstroms (c/a fixed at sqrt(8/3)) Optimization terminated successfully. Current function value: -11.276034 Iterations: 38 Function evaluations: 82 Results for this minimization: a = 2.8976974627235865, total energy = -11.276033594718788 Attempting to perform relaxation using initial lattice constant guess of a = 4.625 Angstroms (c/a fixed at sqrt(8/3)) Optimization terminated successfully. Current function value: -11.276034 Iterations: 38 Function evaluations: 83 Results for this minimization: a = 2.8976974474964647, total energy = -11.276033594718768 Attempting to perform relaxation using initial lattice constant guess of a = 4.75 Angstroms (c/a fixed at sqrt(8/3)) Optimization terminated successfully. Current function value: -11.276034 Iterations: 38 Function evaluations: 82 Results for this minimization: a = 2.897697460540805, total energy = -11.276033594718777 Attempting to perform relaxation using initial lattice constant guess of a = 4.875 Angstroms (c/a fixed at sqrt(8/3)) Optimization terminated successfully. Current function value: -11.276034 Iterations: 38 Function evaluations: 82 Results for this minimization: a = 2.897697445750234, total energy = -11.276033594718758 Attempting to perform relaxation using initial lattice constant guess of a = 5.0 Angstroms (c/a fixed at sqrt(8/3)) Optimization terminated successfully. Current function value: -11.276034 Iterations: 38 Function evaluations: 82 Results for this minimization: a = 2.8976974859833717, total energy = -11.276033594718761 Attempting to perform relaxation using initial lattice constant guess of a = 5.125 Angstroms (c/a fixed at sqrt(8/3)) Optimization terminated successfully. Current function value: -11.276034 Iterations: 38 Function evaluations: 80 Results for this minimization: a = 2.897697460428749, total energy = -11.276033594718776 Attempting to perform relaxation using initial lattice constant guess of a = 5.25 Angstroms (c/a fixed at sqrt(8/3)) Optimization terminated successfully. Current function value: -11.276034 Iterations: 39 Function evaluations: 83 Results for this minimization: a = 2.897697485005481, total energy = -11.276033594718754 Attempting to perform relaxation using initial lattice constant guess of a = 5.375 Angstroms (c/a fixed at sqrt(8/3)) Optimization terminated successfully. Current function value: -11.276034 Iterations: 38 Function evaluations: 81 Results for this minimization: a = 2.8976974623277796, total energy = -11.276033594718768 Attempting to perform relaxation using initial lattice constant guess of a = 5.5 Angstroms (c/a fixed at sqrt(8/3)) Optimization terminated successfully. Current function value: -11.276034 Iterations: 38 Function evaluations: 82 Results for this minimization: a = 2.897697472060096, total energy = -11.276033594718772 Attempting to perform relaxation using initial lattice constant guess of a = 5.625 Angstroms (c/a fixed at sqrt(8/3)) Optimization terminated successfully. Current function value: -11.276034 Iterations: 40 Function evaluations: 85 Results for this minimization: a = 2.897697435953887, total energy = -11.276033594718765 Attempting to perform relaxation using initial lattice constant guess of a = 5.75 Angstroms (c/a fixed at sqrt(8/3)) Optimization terminated successfully. Current function value: -11.276034 Iterations: 38 Function evaluations: 83 Results for this minimization: a = 2.897697451058769, total energy = -11.276033594718767 Attempting to perform relaxation using initial lattice constant guess of a = 5.875 Angstroms (c/a fixed at sqrt(8/3)) Optimization terminated successfully. Current function value: -11.276034 Iterations: 38 Function evaluations: 80 Results for this minimization: a = 2.8976974749937634, total energy = -11.276033594718758 Attempting to perform relaxation using initial lattice constant guess of a = 6.0 Angstroms (c/a fixed at sqrt(8/3)) Optimization terminated successfully. Current function value: -11.276034 Iterations: 38 Function evaluations: 81 Results for this minimization: a = 2.8976974379271194, total energy = -11.27603359471877 Attempting to perform relaxation using initial lattice constant guess of a = 6.125 Angstroms (c/a fixed at sqrt(8/3)) Optimization terminated successfully. Current function value: -11.276034 Iterations: 41 Function evaluations: 87 Results for this minimization: a = 2.897697467668327, total energy = -11.276033594718776 Attempting to perform relaxation using initial lattice constant guess of a = 6.25 Angstroms (c/a fixed at sqrt(8/3)) Optimization terminated successfully. Current function value: -11.276034 Iterations: 40 Function evaluations: 87 Results for this minimization: a = 2.897697453154251, total energy = -11.276033594718779 Attempting to perform relaxation using initial lattice constant guess of a = 6.375 Angstroms (c/a fixed at sqrt(8/3)) Optimization terminated successfully. Current function value: -11.276034 Iterations: 38 Function evaluations: 81 Results for this minimization: a = 2.897697439254259, total energy = -11.27603359471879 Attempting to perform relaxation using initial lattice constant guess of a = 6.5 Angstroms (c/a fixed at sqrt(8/3)) Optimization terminated successfully. Current function value: -11.276034 Iterations: 39 Function evaluations: 85 Results for this minimization: a = 2.8976974558900057, total energy = -11.276033594718776 Attempting to perform relaxation using initial lattice constant guess of a = 6.625 Angstroms (c/a fixed at sqrt(8/3)) Optimization terminated successfully. Current function value: -11.276034 Iterations: 40 Function evaluations: 83 Results for this minimization: a = 2.8976974638950113, total energy = -11.276033594718774 Attempting to perform relaxation using initial lattice constant guess of a = 6.75 Angstroms (c/a fixed at sqrt(8/3)) Optimization terminated successfully. Current function value: -11.276034 Iterations: 40 Function evaluations: 84 Results for this minimization: a = 2.897697454132135, total energy = -11.27603359471878 Attempting to perform relaxation using initial lattice constant guess of a = 6.875 Angstroms (c/a fixed at sqrt(8/3)) Optimization terminated successfully. Current function value: -11.276034 Iterations: 40 Function evaluations: 86 Results for this minimization: a = 2.897697443375364, total energy = -11.276033594718788 Attempting to perform relaxation using initial lattice constant guess of a = 7.0 Angstroms (c/a fixed at sqrt(8/3)) Optimization terminated successfully. Current function value: -11.276034 Iterations: 40 Function evaluations: 84 Results for this minimization: a = 2.8976974861463516, total energy = -11.276033594718754 ============================================================================== ============================================================================== Starting optimization with both a and c/a relaxed ============================================================================== ============================================================================== Attempting to perform relaxation using initial lattice constant guess of a = [2.89769746] Angstroms and c = 3.785536104186512 = ([1.30639453] * a) Angstroms Optimization terminated successfully. Current function value: -11.276034 Iterations: 73 Function evaluations: 157 Results for this minimization: a = 2.897576936515751, c = 4.732312933282035, total energy = -11.276033987011344 Attempting to perform relaxation using initial lattice constant guess of a = [2.89769746] Angstroms and c = 4.022132110698169 = ([1.38804419] * a) Angstroms Optimization terminated successfully. Current function value: -11.276034 Iterations: 69 Function evaluations: 147 Results for this minimization: a = 2.8975769519931975, c = 4.7323130048275885, total energy = -11.276033987011353 Attempting to perform relaxation using initial lattice constant guess of a = [2.89769746] Angstroms and c = 4.2587281172098255 = ([1.46969385] * a) Angstroms Optimization terminated successfully. Current function value: -11.276034 Iterations: 69 Function evaluations: 150 Results for this minimization: a = 2.8975769662884554, c = 4.732312961806873, total energy = -11.276033987011346 Attempting to perform relaxation using initial lattice constant guess of a = [2.89769746] Angstroms and c = 4.495324123721483 = ([1.5513435] * a) Angstroms Optimization terminated successfully. Current function value: -11.276034 Iterations: 68 Function evaluations: 140 Results for this minimization: a = 2.897576941309738, c = 4.732312987068047, total energy = -11.276033987011356 Attempting to perform relaxation using initial lattice constant guess of a = [2.89769746] Angstroms and c = 4.73192013023314 = ([1.63299316] * a) Angstroms Optimization terminated successfully. Current function value: -11.276034 Iterations: 70 Function evaluations: 150 Results for this minimization: a = 2.8975769469210237, c = 4.732312965437942, total energy = -11.276033987011358 Attempting to perform relaxation using initial lattice constant guess of a = [2.89769746] Angstroms and c = 4.968516136744797 = ([1.71464282] * a) Angstroms Optimization terminated successfully. Current function value: -11.276034 Iterations: 76 Function evaluations: 155 Results for this minimization: a = 2.897576912955966, c = 4.7323130120645, total energy = -11.276033987011338 Attempting to perform relaxation using initial lattice constant guess of a = [2.89769746] Angstroms and c = 5.2051121432564535 = ([1.79629248] * a) Angstroms Optimization terminated successfully. Current function value: -11.276034 Iterations: 74 Function evaluations: 157 Results for this minimization: a = 2.8975769578479618, c = 4.732312873158653, total energy = -11.276033987011331 Attempting to perform relaxation using initial lattice constant guess of a = [2.89769746] Angstroms and c = 5.441708149768111 = ([1.87794214] * a) Angstroms Optimization terminated successfully. Current function value: -11.276034 Iterations: 70 Function evaluations: 149 Results for this minimization: a = 2.8975769894377104, c = 4.732312936942215, total energy = -11.276033987011344 Attempting to perform relaxation using initial lattice constant guess of a = [2.89769746] Angstroms and c = 5.6783041562797685 = ([1.95959179] * a) Angstroms Optimization terminated successfully. Current function value: -11.276034 Iterations: 74 Function evaluations: 156 Results for this minimization: a = 2.897576936525574, c = 4.732312979000746, total energy = -11.276033987011358 ============================================================================== ============================================================================== Finished with optimization ============================================================================== ============================================================================== Final lattice Constants: a = 2.8975769469210237 Angstroms, c = 4.732312965437942 Angstroms, c/a = 1.633197 Total energy: -11.276033987011358 eV Cohesive energy: -2.8190084967528395 eV/atom ============================================================================== ==============================================================================