Enter a species (e.g. Al, Fe): As Enter a hexagonal lattice type (e.g. hcp): hcp Enter a model name: Tersoff_LAMMPS_AlbeNordlundNord_2002_GaAs__MO_799020228312_002 Enter hexagonal lattice constants 'a' and 'c' (m): 3.24999959342509e-10, 3.990822233158469e-10 Calculating isothermal bulk modulus Optimization terminated successfully. Current function value: -5.038677 Iterations: 71 Function evaluations: 189 Finished calculation C11 = 128.31105863678246 GPa C12 = 80.90898744940849 GPa B = 96.7096778451998 GPa