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Phase identification and superconductivity transitions in Sr-doped Pr1.85Ce0.15CuO4+δ
Published online by Cambridge University Press: 26 July 2012
Abstract
Sr-doped Pr1.85Ce0.15CuO4+δ samples have been prepared with accurate control of the oxygen content. The stability of both T′ and T* phases is strongly dependent on Sr and oxygen content. An electron diffraction study indicates that, in some cases, anionic vacancies are ordered leading to a pseudo-tetragonal superlattice with unit cell parameters . Structural transitions and superconducting phases created by hole doping in such a system are also reported.
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