کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1793249 1524480 2009 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
High temperature transformation in the defects and impurities system of PbTe:Eu crystals
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
High temperature transformation in the defects and impurities system of PbTe:Eu crystals
چکیده انگلیسی

High temperature transformations in the defects and impurities system of PbTe:Eu crystals grown from the melt by Bridgman method are investigated. Studies of magnetic susceptibility (MS) of the crystals annealed in vacuum at the temperature of 913 K were used for this purpose. It is established that some complexes, which feel ferromagnetic ordering below 75–80 K, are formed in the PbTe:Eu crystals in process of crystal growth. It is concluded that the agglomerations based on the europium oxide EuO form these complexes. Correlations are revealed between transformations in both systems of Eu impurities and non-point native defects like Te precipitates under the effect of high-temperature annealing. A mechanism of transformations explaining the presence and behavior of the correlations is proposed.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Crystal Growth - Volume 311, Issues 23–24, 1 December 2009, Pages 4670–4674
نویسندگان
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