PHONON DISPERSION RELATIONS DATABASE
C - gr
Space group: P6_3/mmc, No=194
Structural Parameters [1]: a=2.471(1)A
| Atoms |
x |
y |
z |
| C1 |
0.0000 |
0.0000 |
0.2500 |
| C2 |
1/3 |
2/3 |
0.2500 |
Phonon dispersion relations calculated from axially symetric model
with 8 parameters [3,4] .
Some neutron measurements are in Ref. [2].
References
- 1. P.H.Gamlen and J.W.White,
J.Phys.Chem.Soc., Faraday Trans. 2
72, 446-55 (1976).
- 2. R.M.Niclow, N.Wakabayashi, H.G.Smith,
Phys.Rev. B 5, 4951 (1972).
- 3. J.A.Young, J.V.Koppel,
J.Chem.Phys. 42, 357 (1965).
- 4. K.K.Mani and R.Ramani,
Phys.stat.solidi (b) 61, 659 (1974).
