Enter an atomic species: Ni Enter a cubic lattice type: fcc Enter a model name: EAM_Dynamo_BelandTammMu_2017_FeNiCr__MO_715003088863_000 Enter a lattice constant (m): 3.519293650984764e-10 WARNING, 3 imaginary frequencies at q = ( 0.00, 0.00, 0.00) ; (omega_q = 2.418e-08*i) WARNING, 3 imaginary frequencies at q = ( 0.00, 0.00, 0.00) ; (omega_q = 2.418e-08*i)