Enter a species (e.g. Al, Fe): Nb Enter a hexagonal lattice type (e.g. hcp): hcp Enter a model name: EAM_MagneticCubic_DerletNguyenDudarev_2007_Nb__MO_218026715338_002 Enter hexagonal lattice constants 'a' and 'c' (m): 2.961665670495925e-10, 4.836379831696484e-10 Calculating isothermal bulk modulus Warning: Maximum number of function evaluations has been exceeded. Finished calculation C11 = 445.5933854964216 GPa C12 = 224.9423573121611 GPa B = 298.49270004024794 GPa Potential info: Nb potential Atomic number: 41 Potential info: Nb potential Atomic number: 41