Electronic conduction in single crystals of uranium dioxide

Pierre Nagels, J. Devreese, Marcel Denayer

    Research outputpeer-review


    Electrical conductivity measurements between 90° and 800°K have been performed on single crystals of uranium dioxide with compositions in the range UO2.000-UO2.007. The activation energy calculated from the lnσT vs 1/T curves decreases from 0.34 to 0.19 eV with increasing excess oxygen content. Hall effect measurements by dc and ac techniques yielded no measurable response, and indicate that the Hall mobility is smaller than 0.015 cm^V-1 sec-1 at room temperature. This result and a consideration of the fundamental parameters determining the transport mechanism suggest an interpretation based on small polaron theory.
    Original languageEnglish
    PublisherSCK CEN
    Number of pages9
    StatePublished - Sep 1963

    Publication series

    NameSCK CEN Reports
    PublisherSCK CEN

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