Variable energy positron annihilation spectroscopy of Perovskite oxides

    Research output: Chapter in Book/Report/Conference proceedingChapter (peer-reviewed)

    2 Citations (Scopus)


    The application of variable energy positron annihilation spectroscopy (VE-PAS) methods to the study of perovskite oxide, ABO3, material thin films and near-surface regions is reviewed. The primary focus is on ferroic perovskite titanate oxide materials SrTiO3 and Pb(ZrxTi1-x)O3, but studies of BaTiO3, LaxSr1-xCoO3, La0.67Sr0.33MnO3 and YBa2CuO7-d are also included. Characterization of single layer and multilayer structures is discussed. The methods, in particular positron annihilation lifetime spectroscopy, allow the identification of cation vacancy defects at both the A- and B-sites with parts per million sensitivity. Varying oxygen deficiency is often observed to result in marked changes in PAS spectra; these effects are reviewed and discussed.

    Original languageEnglish
    Title of host publicationNear-surface depth profiling of solids by mono-energetic positrons
    EditorsB.N. Ganguly, G. Brauer
    Place of PublicationSwitzerland
    PublisherTrans Tech Publications LTD
    Number of pages33
    ISBN (Print)139783037855249
    Publication statusPublished - 19 Sept 2012

    Publication series

    NameDefect and Diffusion Forum


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