TY  - JOUR
TI  - Crystal structure and electrical properties of Ag6PS5I single crystal
AU  - Studenyak, I.P.
AU  - Pogodin, A.I.
AU  - Filep, M.J.
AU  - Kokhan, O.P.
AU  - Symkanych, O.I.
AU  - Timko, M.
AU  - Kopčanský, P.
T2  - Semiconductor Physics, Quantum Electronics & Optoelectronics
JO  - Semiconductor Physics, Quantum Electronics & Optoelectronics
VL  - 24
IS  - 1
SP  - 26
EP  - 33
PY  - 2021
DA  - 2021
DO  - 10.15407/spqeo24.01.026
UR  - https://doi.org/10.15407/spqeo24.01.026
N2  - The single crystals of quaternary halogen Ag6PS5I were grown from the solution–melt by means of a vertical zone crystallization method. The crystal structure has been ascertained using the Rietveld method. Investigation of electrical conductivity was carried out using the impedance spectroscopy technique within the frequency range 1·101 – 3·105 Hz and temperature interval 293–383 K on gold contacts applied by chemical deposition from solution. Ionic (1.79·10-3 S/cm) and electronic (1.64·10-6 S/cm) components of electrical conductivity have been determined using the Nyquist plots. The mechanism of ionic conductivity for Ag6PS5I single crystal has been proposed which can be considered as ion diffusion through “channels” Ag2–Ag2.
KW  - argyrodite
KW  - superionic conductor
KW  - single crystal
KW  - impedance spectroscopy
KW  - electrical conductivity
KW  - crystal structure
ER  -