Electrical behaviour of strontium-doped lanthanum manganite interfaces

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    The contact resistance of strontium-doped lanthanum manganite (LSM) contact pairs is investigated by polarisation analysis at different temperatures and atmospheres.

    The ceramic contacts have a high contact resistance, and strongly nonlinear current–voltage behaviour is observed at low temperatures. The nonlinear behaviour is ascribed to the presence of energy barriers at the contact interface.

    Generally, point contacts showed a more linear behaviour than plane contact interfaces.
    Original languageEnglish
    JournalSolid State Ionics
    Issue number9-10
    Pages (from-to)861-869
    Publication statusPublished - Mar 2005


    • Contact resistance
    • Ceramic contact
    • LSM
    • Nonohmic behaviour
    • Potential barrier
    • SOFC
    • Cathode material
    • La1−xSrxMn1+δO3


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