Enter an atomic species: Ni Enter a cubic lattice type: fcc Enter a model name: Sim_LAMMPS_Table_GrogerVitekDlouhy_2020_CoCrFeMnNi__SM_786004631953_000 Enter a lattice constant (m): 3.501860469579697e-10 WARNING, 3 imaginary frequencies at q = ( 0.00, 0.00, 0.00) ; (omega_q = 1.492e-08*i) WARNING, 3 imaginary frequencies at q = ( 0.00, 0.00, 0.00) ; (omega_q = 1.492e-08*i)