Transport properties of mixing conduction in CaF2 nanocrystals under high pressure
Hu Ting-Jing1, Cui Xiao-Yan1, †, Wang Jing-Shu1, Zhang Jun-Kai1, Li Xue-Fei1, Yang Jing-Hai1, Gao Chun-Xiao2, ‡
       

The equivalent circuit model for mixing conduction of electron and ion. is the grain resistance, is the grain boundary resistance, is the grain capacitance, is the grain boundary capacitance, and is the Warburg impedance.