کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1815521 1025665 2007 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Study of microstructure and magnetic properties in copper oxide superconducting systems through AC magnetic susceptibility
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
Study of microstructure and magnetic properties in copper oxide superconducting systems through AC magnetic susceptibility
چکیده انگلیسی

Two samples of high temperature superconductors with the general compositions YBa2Cu3O7-δYBa2Cu3O7-δ and GdBa2Cu3O7-δGdBa2Cu3O7-δ were prepared by solid state reaction. The X-ray diffraction patterns and the Scherrer's equation were used to obtain the lattice parameters and the average grain size, D  . We explored the microstructure of both samples using the temperature dependence of AC magnetic susceptibility at different magnetic field amplitudes. We discussed the flux flow regime and pinning and used the Cole–Cole plots to calculate the grain fraction in the samples. Finally, real parts was used to calculate the lower critical magnetic field Hc1(T)Hc1(T) as a function temperature.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica B: Condensed Matter - Volume 399, Issue 1, 1 October 2007, Pages 70–76
نویسندگان
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