Enter a species (e.g. Al, Fe): Rb Enter a hexagonal lattice type (e.g. hcp): hcp Enter a model name: EAM_Dynamo_NicholAckland_2016v2_Rb__MO_874930365376_000 Enter hexagonal lattice constants 'a' and 'c' (m): 5.009104533412029e-10, 8.179833450080986e-10 Calculating isothermal bulk modulus Warning: Maximum number of function evaluations has been exceeded. Finished calculation C11 = 3.905762269163809 GPa C12 = 0.8860538762702496 GPa B = 1.8926233405681026 GPa