The effect of a weak pulsed magnetic field on the ionic conductivity of the superionic conductor Pb$_{0.67}$Cd$_{0.33}$F$_2$

A magnetoconductometric effect was found under pulsed magnetic action ($B = 0.1-1$ T) on a single crystal of the superionic conductor Pb$_{0.67}$Cd$_{0.33}$F$_2$ (cubic symmetry, space group Fm$\bar3$m, unit cell parameter $a$ = 5.7575 $\mathring{\mathrm{A}}$). The static electrical conductivity $\sigma_{\mathrm{dc}}$ was determined from impedance spectra in the frequency range 5–5 $\cdot$ 10$^5$ Hz. In the absence of magnetic influence $(B = 0)$ the ionic conductivity of a superionic crystal is $\sigma_{\mathrm{dc}}$ = 1.4 $\cdot$10$^{-4}$ S/cm. When applying a magnetic field ($B = (0.1-1)$ T) it increases, reaching $\sigma_{\mathrm{dc}}$ = 9.5 $\cdot$ 10$^{-4}$ S/cm and $\sigma_{\mathrm{dc}}(B)/\sigma_{\mathrm{dc}}(0)$ = 6.8 at $B = 1$ T. The nature of the magnetoconductometric effect in the superionic Pb$_{0.67}$Cd$_{0.33}$F$_2$ is discussed in connection with the features its atomic structure.