High Proton Conductivity in Prussian Blue Analogues and the Interference Effect by Magnetic Ordering

We observed high proton conductivities of 1.2 × 10−3 and 1.6 × 10−3 S cm−1 on Co[Cr(CN)6]2/3·zH2O and V[Cr(CN)6]2/3·zH2O, respectively, and an interference effect between magnetic ordering and ionic conduction below the magnetic phase transition temperature.