| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1518780 | Journal of Physics and Chemistry of Solids | 2007 | 7 Pages |
Abstract
NaCdZn2F7 pyrochlore (Fd3¯m, Z=8), in which the Na and Cd cations are completely disordered, is shown to be structurally stable in the temperature range 100-643 K using X-ray diffraction and Raman scattering at atmospheric pressure. X-ray single-crystal measurements indicate that the (Na, Cd)F8 cubes become more regular, while the ZnF6 octahedra become more distorted in this structure upon cooling. The anomalous temperature-dependence of one of the Raman-active mode has been observed.
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Authors
Andrzej Grzechnik, Reinhard Kaindl, Karen Friese,