Low-Temperature Superionic Conductivity in Strained Yttria-Stabilized Zirconia

Michael Sillassen, Per Eklund, Nini Pryds, Erik Johnson, Ulf Helmersson, Jørgen Bøttiger

    Research output: Contribution to journalJournal articleResearchpeer-review


    Very high lateral ionic conductivities in epitaxial cubic yttria-stabilized zirconia (YSZ) synthesized on single-crystal SrTiO3 and MgO substrates by reactive direct current magnetron sputtering are reported. Superionic conductivities (i.e., ionic conductivities of the order 1 -1cm-1) are observed at 500 °C for 58-nm-thick films on MgO. The results indicate a superposition of two parallel contributions - one due to bulk conductivity and one attributable to conduction along the film-substrate interface. Interfacial effects dominate the conductivity at low temperatures (
    Original languageEnglish
    JournalAdvanced Functional Materials
    Issue number13
    Pages (from-to)2071-2076
    Publication statusPublished - 2010


    • Materials and energy storage
    • Superconducting materials


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