Enter an atomic species:
Pb
Enter a cubic lattice type:
fcc
Enter a model name:
Morse_Shifted_GirifalcoWeizer_1959LowCutoff_Pb__MO_534638645497_003
Enter a lattice constant (m):
4.956557989120483e-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, 1 imaginary frequencies at q = ( 0.00,  0.00,  0.00) ; (omega_q = 3.080e-09*i)
WARNING, 1 imaginary frequencies at q = ( 0.00,  0.00,  0.00) ; (omega_q = 3.080e-09*i)