Enter an atomic species: Pd Enter a cubic lattice type: fcc Enter a model name: EAM_Dynamo_ZhouBarteltSills_2021_PdHHe__MO_865505436319_000 Enter a lattice constant (m): 3.637506820261479e-10 WARNING, 1 imaginary frequencies at q = ( 0.00, 0.00, 0.00) ; (omega_q = 5.240e-09*i) WARNING, 1 imaginary frequencies at q = ( 0.00, 0.00, 0.00) ; (omega_q = 5.240e-09*i)