Fig. 7

Variation of the Deby temperature (θD) of the Cs2AgBiX6 (X = Br, Cl) compounds versus temperature and at different pressures, using the GGA approximation.

Variation of the Deby temperature (θD) of the Cs2AgBiX6 (X = Br, Cl) compounds versus temperature and at different pressures, using the GGA approximation.