Abstract:
The conditions of synthesizing a new Ag$_6$SnS$_4$Br$_2$ compound were studied. The crystallographic parameters of the unit cell were determined as follows: space group Pnma, $a$ = 6.67050(10) $\mathring{\mathrm{A}}$, $b$ = 7.82095(9) $\mathring{\mathrm{A}}$, $c$ = 23.1404(3) $\mathring{\mathrm{A}}$, and Z = 4. The total electrical conductivity and its ionic component were measured by a dc probe method in the temperature range 210–380 K. Kinks in the conductivity curve and the differential thermogram of heating the alloy were revealed at 235 K. It was concluded that the mass and charge transfers in the compacted Ag$_6$SnS$_4$Br$_2$ alloy powder have an intragrain character.
