Abstract
Some results of calorimetric and structural investigations of the A 2 A′ MO x F 6 − x crystals series with the elpasolite-cryolite structure are reported. The analysis has exhibited a key role of the MO x F 6 − x species content in the disordering degree and stability of Fm3m phase as well as in the nature of structural distortions.
Acknowledgment
This work was supported by Russian Foundation for Basic Research (Grant N 06-02-16102a).