R.L. Withers
A new three-dimensional incommensurately modulated cubic phase (in ZrP2B7) and its symmetry characterization via temperature- dependent electron diffraction
Withers, R.L.; Tabira, Y.; Evans, J.S.O.; King, I.J.; Sleight, A.W.
Abstract
A detailed electron diffraction study has been made of the ZrP2O7 member of the AM(2)O(7) family of framework structures and of its temperature-dependent structural phase transformations. The room-temperature phase corresponds to a primitive 3 x 3 x 3 superstructure phase of probable space group symmetry Pa3. An observed glide extinction condition when viewed down < 001 > ages could, however, also be compatible with resultant Pbca space group symmetry. The high-temperature phase corresponds to the normal unmodulated parent structure. An intervening intermediate phase that exists over a relatively narrow temperature window (similar to 5-10 degreesC) around 294 degreesC is shown to be a three-dimensional incommensurately modulated cubic phase characterized by incommensurate primary modulation wave vectors in the close vicinity of 0.31 < 100 >* and probable superspace group symmetry P: Pa (3) over bar: Ia (3) over bar. (C) 2001 Academic Press.
Citation
Withers, R., Tabira, Y., Evans, J., King, I., & Sleight, A. (2001). A new three-dimensional incommensurately modulated cubic phase (in ZrP2B7) and its symmetry characterization via temperature- dependent electron diffraction. Journal of Solid State Chemistry, 157(1), 186-192
Journal Article Type | Article |
---|---|
Publication Date | 2001-02 |
Journal | Journal of Solid State Chemistry |
Print ISSN | 0022-4596 |
Electronic ISSN | 1095-726X |
Publisher | Elsevier |
Peer Reviewed | Peer Reviewed |
Volume | 157 |
Issue | 1 |
Pages | 186-192 |
Public URL | https://durham-repository.worktribe.com/output/1556779 |
Publisher URL | <Go to ISI>://000167634500025 |
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