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To study the electrical properties of solid ionic conductors with a spatial resolution we developed a novel variant of the impedance technique based on the two-dimensionality of the cell-electrodes arrangement and resulting frequency dependent penetration depth of the excitation signal, ie the electrical signals spread deeper into the ionic conductor the lower the frequency. The technique was quantitatively...
A new measuring principle to study interfacial effects using a displacement current through a dielectric coating is presented. It enables the scanning of the electric response from the core of the interface up to the bulk by changing the frequency. In contrast to traditional impedance measurements, the interfacial effects appear at higher frequencies than the bulk and can be measured with a corresponding...
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