On the jump‐diffusion in cation‐disordered solid electrolytes: The complex conductivity of β‐CuBr in the microwave range

Experimental results of the microwave complex conductivity of β‐CuBr are presented along with a simple model for the jump diffusion in cation‐disordered solid electrolytes. The conductivity and permittivity spectra of β‐CuBr show the same typical features as those of α‐AgI and α‐CuI. They are closely fitted by the model. The mean duration of the jumps is estimated to be roughly 2 · 10−11 s.