Enter an atomic species: Ni Enter a cubic lattice type: fcc Enter a model name: MEAM_LAMMPS_CostaAgrenClavaguera_2007_AlNi__MO_131642768288_001 Enter a lattice constant (m): 3.521391749382019e-10 WARNING, 1 imaginary frequencies at q = ( 0.00, 0.00, 0.00) ; (omega_q = 4.065e-09*i) WARNING, 1 imaginary frequencies at q = ( 0.00, 0.00, 0.00) ; (omega_q = 4.065e-09*i)