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Figure 7
Relationship of the unit cells of β-CaTeO3 and the γ-CaTeO3 polytypes MDO1 and MDO2. The dots represent the crystal lattice of the MDO1 polytype in γ-CaTeO3. (a) Projection on (010); (b) projection on (001). [{\bf a}_\beta] is tripled when compared with [{\bf a}_\gamma] owing to the threefold superstructure of β-CaTeO3 along [100]. [{\bf c}_{\gamma,{\rm MDO_1}}] is doubled when compared with [{\bf c}_{\gamma,{\rm MDO_2}}]. The dotted lines in the left part represent the reduced setting of the unit cell of γ-CaTeO3 MDO2 with pseudo-orthorhombic metric.

Journal logoSTRUCTURAL SCIENCE
CRYSTAL ENGINEERING
MATERIALS
ISSN: 2052-5206
Volume 65| Part 2| March 2009| Pages 167-181
doi:10.1107/S0108768109002997
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