#Cerium Niobium Oxide, CeNb04
#Monoclinic, I2/a (15), Z = 4. The structure of CeNb04 has been determined using neutron
#powder diffraction by Santoro et al. [1980]. This phase had earlier been reported to be in
#space group Ia(5) by Komkov [1959]. CeNb04 is isostructural with other rare earth niobates
#and tantalates [Roth et al., 1977]. The structure is a distorted scheelite type called
#beta-fergusonite-(Ce) or brocenite [Kuo et al., 1975].
#Lattice constants of this sample
#a = 5.5403(7), b =11.4087(14), c = 5.1631(7), beta = 94.602(13)
#a/b = 0.4856, c/b = 0.4526
#Volume 325.30 A3
5.705
4.973
4.697
3.233
3.133
3.059
2.852
2.761
2.574
2.462
2.357
2.346
2.308
2.242
2.0861
2.0343
2.0019
1.9841
1.9622
1.9455
1.9111
1.9017
1.8557
1.8112
1.7264
1.7114
1.6982
1.684