Abstract
The sodium ion-based materials have interesting physical properties which make them suitable for industrial applications. In this paper, we focus our work on sodium ytterbium phosphate NaYbP2O7, prepared by the solid-state method. It is found that NaYbP2O7 crystallizes in the monoclinic system with P12(1)/n1 space group. Impedance analysis shows that this compound exhibits semiconductor behavior and that the conduction mechanism is thermally activated. AC conductivity measurements show that NaYbP2O7 can be a good ionic conductor with an activation energy value up to 0.94eV. The frequency dependence of conductivity is probably caused by the jump of Na ions between octahedral sites of the olive framework. Such properties of NaYbP2O7 make it suitable as an ionic conductor.