**Resonant increase of ionic conductance of yttria-stabilized zirconia in
an alternating external electric field**

AV Rozhkov and SK Ignatov and EV Suleimanov, JOURNAL OF SOLID STATE ELECTROCHEMISTRY, 27, 1177-1184 (2023).

DOI: 10.1007/s10008-023-05420-1

The effect of an external alternating electric field on the diffusion of O2- ions in yttria-stabilized zirconia was studied by the molecular dynamics method in a wide frequency range (10(6)-10(9) Hz) with a variation of the molar fraction of the dopant. It was found that in the frequency range of the external electric field from 2 center dot 10(8) to 3 center dot 10(8) Hz, the value of the diffusion coefficient resonantly increases; the exact value of the resonant frequency depends on the composition of the solid electrolyte. The influence of two simultaneously applied external electric fields, alternating and constant, was studied, and two variants of the relative positions of the field vectors were considered: perpendicular to each other and co- directional. With the co-directional imposition of two electric fields, alternating with an amplitude of strength equal to 0.02 V/angstrom and constant with a strength equal to 0.02 V/angstrom, the resonance is especially noticeable: 2.63 center dot 10(-10) m(2)/s at Y2O3 content of 4.6 mol.%, which is 2.22 times more than the average value of the diffusion coefficient at frequencies (1-5)center dot 10(6) Hz and 2 times more than the average value at frequencies (5-9)center dot 10(9) Hz.

Return to Publications page