The ferroelectric phase transition in pure lightly doped barium titanate

C N W Darlington, R J Cernik

    Research output: Contribution to journalArticlepeer-review


    The effect of light doping on the phase transition to the ferroelec. state in BaTiO3 was studied using synchrotron radiation at Daresbury Lab., UK. The presence of dil. impurities, which turn BaTiO3 from a wide band-gap intrinsic semiconductor into an extrinsic n-type semiconductor, change the transition from a discontinuous to a continuous one, and produce large spatial variation in magnitude of the elec. polarization in both the high- and low-temp. phases; these fluctuations were barely detectable in the pure, annealed material. [on SciFinder(R)]
    Original languageEnglish
    Pages (from-to)4555-67
    Number of pages4487
    JournalJ. Phys. Condens. Matter
    Issue number25
    Publication statusPublished - 1991


    • Synchrotron radiation (ferroelec. phase transition in pure and lightly doped barium titanate detd. by)
    • Ferroelectricity (in barium titanate in pure and lightly doped states, phase transition temp. for)
    • ferroelec phase transition doped barium titanate


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