<I> Phonon Dispersion Relations Database

alpha-N_2

Space group: Pm-3n, No=223
Structural Parameters [1]: a=6.164(1)A

Phonon dispersion relations masured by neutron scattering and calculated from 6-12 potential with 3 parameters [2].

Space group: Fm-3m, No=225
Structural Parameters [1]: a=5.6402A

Phonon dispersion relations masured by neutron scattering [2] and from shell model with 11 parameters [3,4].

References

1. H.E.Swanson and R.K.Fuyat, National Bureau of Standards, Circular 539, 41-43 (1953).
2. G.Raunio and S.Rolandson, Phys.Rev. B 2, 2098 (1970).
3. O.N.Bolinin, Sov.Phys.Solid State 18, 1415 (1976).
4. A.N.Basu and S.Sengupta in Lattice Dynamics, ed. by M.Balkanski (Flamarion, Paris 1978) p.43.