Element = Lattice = Model = Element: Ni Lattice: hcp Model: Sim_LAMMPS_ADP_MishinMehlPapaconstantopoulos_2005_Ni__SM_477692857359_000 Computed model cutoff of 5.168000000119227 Angstroms Computed isolated atomic energy of 0.0 eV for species Ni ============================================================================== ============================================================================== 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: -17.708177 Iterations: 39 Function evaluations: 83 Results for this minimization: a = 2.490905833244327, total energy = -17.70817712057111 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: -17.708177 Iterations: 38 Function evaluations: 83 Results for this minimization: a = 2.4909058079123496, total energy = -17.70817712057114 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: -17.708177 Iterations: 38 Function evaluations: 81 Results for this minimization: a = 2.4909057933837175, total energy = -17.708177120571108 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: -17.708177 Iterations: 37 Function evaluations: 77 Results for this minimization: a = 2.4909058250486904, total energy = -17.708177120571097 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: -17.708177 Iterations: 37 Function evaluations: 78 Results for this minimization: a = 2.490905807912352, total energy = -17.708177120571133 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: -17.708177 Iterations: 37 Function evaluations: 80 Results for this minimization: a = 2.4909058277262393, total energy = -17.708177120571097 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: -17.708177 Iterations: 35 Function evaluations: 76 Results for this minimization: a = 2.490905785933137, total energy = -17.708177120571094 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: -17.708177 Iterations: 35 Function evaluations: 76 Results for this minimization: a = 2.490905810147524, total energy = -17.7081771205711 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: -17.708177 Iterations: 35 Function evaluations: 74 Results for this minimization: a = 2.4909058332443252, total energy = -17.708177120571097 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: -17.708177 Iterations: 35 Function evaluations: 75 Results for this minimization: a = 2.4909057756187405, total energy = -17.708177120571065 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: -17.708177 Iterations: 33 Function evaluations: 74 Results for this minimization: a = 2.4909058079123505, total energy = -17.70817712057112 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: -17.708177 Iterations: 33 Function evaluations: 71 Results for this minimization: a = 2.4909058124932932, total energy = -17.708177120571104 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: -17.708177 Iterations: 32 Function evaluations: 69 Results for this minimization: a = 2.4909057933837175, total energy = -17.7081771205711 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: -17.708177 Iterations: 36 Function evaluations: 78 Results for this minimization: a = 2.4909058027609707, total energy = -17.708177120571115 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: -17.708177 Iterations: 34 Function evaluations: 76 Results for this minimization: a = 2.4909058332443235, total energy = -17.708177120571097 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: -17.708177 Iterations: 35 Function evaluations: 75 Results for this minimization: a = 2.4909057923126956, total energy = -17.7081771205711 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: -17.708177 Iterations: 36 Function evaluations: 78 Results for this minimization: a = 2.4909058135002837, total energy = -17.70817712057111 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: -17.708177 Iterations: 37 Function evaluations: 81 Results for this minimization: a = 2.490905791055411, total energy = -17.70817712057111 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: -17.708177 Iterations: 35 Function evaluations: 73 Results for this minimization: a = 2.490905828028917, total energy = -17.708177120571094 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: -17.708177 Iterations: 36 Function evaluations: 76 Results for this minimization: a = 2.490905791148543, total energy = -17.708177120571108 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: -17.708177 Iterations: 38 Function evaluations: 83 Results for this minimization: a = 2.490905835560988, total energy = -17.708177120571094 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: -17.708177 Iterations: 36 Function evaluations: 77 Results for this minimization: a = 2.4909058026620166, total energy = -17.708177120571108 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: -17.708177 Iterations: 37 Function evaluations: 78 Results for this minimization: a = 2.4909058017656207, total energy = -17.70817712057112 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: -17.708177 Iterations: 37 Function evaluations: 80 Results for this minimization: a = 2.490905817504968, total energy = -17.708177120571094 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: -17.708177 Iterations: 38 Function evaluations: 80 Results for this minimization: a = 2.4909058005549, total energy = -17.708177120571122 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: -17.708177 Iterations: 36 Function evaluations: 74 Results for this minimization: a = 2.490905798316818, total energy = -17.708177120571126 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: -17.708177 Iterations: 37 Function evaluations: 80 Results for this minimization: a = 2.4909057752229247, total energy = -17.708177120571058 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: -17.708177 Iterations: 38 Function evaluations: 80 Results for this minimization: a = 2.4909058218399878, total energy = -17.7081771205711 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: -17.708177 Iterations: 38 Function evaluations: 82 Results for this minimization: a = 2.490905779413874, total energy = -17.708177120571065 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: -17.708177 Iterations: 38 Function evaluations: 80 Results for this minimization: a = 2.490905809961258, total energy = -17.708177120571094 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: -17.708177 Iterations: 39 Function evaluations: 85 Results for this minimization: a = 2.490905797341841, total energy = -17.708177120571104 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: -17.708177 Iterations: 38 Function evaluations: 81 Results for this minimization: a = 2.4909058135002815, total energy = -17.708177120571108 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: -17.708177 Iterations: 38 Function evaluations: 81 Results for this minimization: a = 2.4909057933837175, total energy = -17.70817712057108 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: -17.708177 Iterations: 39 Function evaluations: 81 Results for this minimization: a = 2.4909058171091547, total energy = -17.708177120571097 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: -17.708177 Iterations: 39 Function evaluations: 84 Results for this minimization: a = 2.490905810706315, total energy = -17.70817712057109 ============================================================================== ============================================================================== Starting optimization with both a and c/a relaxed ============================================================================== ============================================================================== Attempting to perform relaxation using initial lattice constant guess of a = [2.49090581] Angstroms and c = 3.2541057209175177 = ([1.30639453] * a) Angstroms Optimization terminated successfully. Current function value: -17.711463 Iterations: 71 Function evaluations: 150 Results for this minimization: a = 2.4819661431032896, c = 4.104360756394085, total energy = -17.711463252324027 Attempting to perform relaxation using initial lattice constant guess of a = [2.49090581] Angstroms and c = 3.4574873284748624 = ([1.38804419] * a) Angstroms Optimization terminated successfully. Current function value: -17.711463 Iterations: 71 Function evaluations: 148 Results for this minimization: a = 2.481966159374093, c = 4.104360679637739, total energy = -17.711463252324034 Attempting to perform relaxation using initial lattice constant guess of a = [2.49090581] Angstroms and c = 3.660868936032207 = ([1.46969385] * a) Angstroms Optimization terminated successfully. Current function value: -17.711463 Iterations: 73 Function evaluations: 152 Results for this minimization: a = 2.481966148507704, c = 4.104360711783371, total energy = -17.71146325232404 Attempting to perform relaxation using initial lattice constant guess of a = [2.49090581] Angstroms and c = 3.864250543589552 = ([1.5513435] * a) Angstroms Optimization terminated successfully. Current function value: -17.711463 Iterations: 68 Function evaluations: 143 Results for this minimization: a = 2.4819661317160424, c = 4.104360731851058, total energy = -17.711463252324027 Attempting to perform relaxation using initial lattice constant guess of a = [2.49090581] Angstroms and c = 4.0676321511468965 = ([1.63299316] * a) Angstroms Optimization terminated successfully. Current function value: -17.711463 Iterations: 67 Function evaluations: 140 Results for this minimization: a = 2.481966155195988, c = 4.104360681862964, total energy = -17.711463252324027 Attempting to perform relaxation using initial lattice constant guess of a = [2.49090581] Angstroms and c = 4.271013758704241 = ([1.71464282] * a) Angstroms Optimization terminated successfully. Current function value: -17.711463 Iterations: 74 Function evaluations: 159 Results for this minimization: a = 2.481966163642356, c = 4.104360724665969, total energy = -17.71146325232403 Attempting to perform relaxation using initial lattice constant guess of a = [2.49090581] Angstroms and c = 4.474395366261586 = ([1.79629248] * a) Angstroms Optimization terminated successfully. Current function value: -17.711463 Iterations: 67 Function evaluations: 141 Results for this minimization: a = 2.4819661363392016, c = 4.104360757523776, total energy = -17.711463252324037 Attempting to perform relaxation using initial lattice constant guess of a = [2.49090581] Angstroms and c = 4.677776973818931 = ([1.87794214] * a) Angstroms Optimization terminated successfully. Current function value: -17.711463 Iterations: 69 Function evaluations: 148 Results for this minimization: a = 2.48196614796972, c = 4.104360707856831, total energy = -17.711463252324037 Attempting to perform relaxation using initial lattice constant guess of a = [2.49090581] Angstroms and c = 4.881158581376275 = ([1.95959179] * a) Angstroms Optimization terminated successfully. Current function value: -17.711463 Iterations: 71 Function evaluations: 154 Results for this minimization: a = 2.4819661347262043, c = 4.104360683374442, total energy = -17.71146325232402 ============================================================================== ============================================================================== Finished with optimization ============================================================================== ============================================================================== Final lattice Constants: a = 2.481966148507704 Angstroms, c = 4.104360711783371 Angstroms, c/a = 1.653673 Total energy: -17.71146325232404 eV Cohesive energy: -4.42786581308101 eV/atom ============================================================================== ==============================================================================