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PHONON DISPERSION RELATIONS DATABASE


alpha-SiO_2


Space group: P3_221, No=154
Structural Parameters [1]: a=4.913A c=5.4052A
Atoms
x
y
z
Si
0.4699
0.0000
2/3
O
0.4141
0.2681
0.7854

Phonon dispersion relations measured by neutron scattering [2] and calculated from force constant model with 7 parameters [3].
Phonon Dispersion Relations of alpha-SiO_2

References