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

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