Baroemf in the metal—superionic-metal system: AgAg4RbJ5Ag

It is shown that the application of pressure to one of the electrodes of the AgAg₄RbJ₅Ag system causes a flow of Ag⁺ ions into a region of lower pressure, thus giving rise to baroemf. The value of the baroelectric coefficient is determined by the volume-to-charge ratio of “metallic” ion: $\text{α =}\text{v}{}_0\text{e}\text{= (8?9) × 10}{}^{\mathrm{?11}}\text{V Pa}{}^{\mathrm{?1}}$, which agrees quite well with the measured values of (7–9) × 10^?11 V Pa^?1. Freshly prepared samples exhibit a non-equilibrium enhancement of baroemf, so that α differs somewhat from the above value.