کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8163005 1525212 2014 20 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Local-site cation ordering of Eu3+ ion in doped PbTiO3
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
Local-site cation ordering of Eu3+ ion in doped PbTiO3
چکیده انگلیسی
X-ray diffraction (XRD), extended X-ray absorption fine structure (EXAFS), and scanning electron microscopy experiments were carried out in the (Pb0.88Eu0.08)TiO3 ferroelectric compound with a perovskite type structure. Qualitative EXAFS analysis has shown that Eu3+ ions substitute to Pb2+ and Ti4+ ions at A and B sites of the ABO3 structure, respectively. The XRD pattern refinement was consistent with the Eu3+ substitution at both A and B sites, which provides the formation of donor and acceptor-type defects. The shape of the observed X-ray lines profiles has shown features, which are known for this kind of ferroelectric material to be typical of the ferroelectric domains microstructure. A phenomenological model has been used for fitting the diffraction profiles by the Rietveld method.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica B: Condensed Matter - Volume 434, 1 February 2014, Pages 171-176
نویسندگان
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