Ionic conductivity in ferroic CuInP2S6 and CuCrP2S6

Authors :: Maisonneuve, V.
Reau, J. M.
Dong, Ming
Cajipe, V. B.
Payen, C.
Ravez, J.
Source :: Ferroelectrics; May 1997, Vol. 196 Issue: 1 p257-260, 4p
Publication Year :: 1997
Abstract: ac electrical measurements are reported for the paraelectric phases of the ferroelectric CuInP2S6 and antiferroelectric CuCrP2S6. A complex permittivity analysis confirms previous dielectric results for CuInP2S6. Arrhenius behaviors with nearly identical activation energies were observed for the dc conductivities and modulus relaxation frequencies. A hopping mechanism for Cu(I) transport in these materials is thus suggested.