Dielectric and superionic properties of Rb4LiH3(SO4)4 (RLHS)

Abstract Dielectric measurement was performed on Rb4LiH3(SO4)4 in the temperature range from room temperature to 500 K. Dielectric anomalies are found at 468 K and 490 K. Superionic properties are found above room temperature. The activation energies for the ionic motion along b− and c-axes are 1.21 eV and 1.6 eV, respectively.