Enter a species (e.g. Al, Fe): Cu Enter a hexagonal lattice type (e.g. hcp): hcp Enter a model name: Sim_LAMMPS_MEAM_AsadiZaeemNouranian_2015_Cu__SM_239791545509_000 Enter hexagonal lattice constants 'a' and 'c' (m): 2.558265491737636e-10, 4.19147190172561e-10 Calculating isothermal bulk modulus Optimization terminated successfully. Current function value: -7.073210 Iterations: 72 Function evaluations: 191 Finished calculation C11 = 239.09525917832806 GPa C12 = 95.85245875719038 GPa B = 143.6000588975696 GPa