Enter an atomic species: Al Enter a cubic lattice type: fcc Enter a model name: EAM_Dynamo_JacobsenNorskovPuska_1987_Al__MO_411692133366_000 Enter a lattice constant (m): 3.987558534741402e-10 Writing phonon.eq.pckl Writing phonon.0x-.pckl Writing phonon.0x+.pckl Writing phonon.0y-.pckl Writing phonon.0y+.pckl Writing phonon.0z-.pckl Writing phonon.0z+.pckl WARNING, 3 imaginary frequencies at q = ( 0.00, 0.00, 0.00) ; (omega_q = 1.412e-08*i) WARNING, 3 imaginary frequencies at q = ( 0.00, 0.00, 0.00) ; (omega_q = 1.412e-08*i)