کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1819040 | 1026043 | 2009 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Enhanced superconducting properties of Eu2O3-doped MgB2
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Bulk polycrystalline samples of Eu2O3-doped MgB2 have been synthesized by a standard solid state reaction route and their structural and superconducting properties have been investigated. As a function of Eu2O3 content we have found a significant increase in the critical current density (Jc) and the irreversibility field (Hirr) in the magnetic field range 0-6Â T. The XRD results reveal the presence of MgO and EuB6 secondary phases along with the main hexagonal phase of MgB2. The strain values and the lattice distortions have been found to increase almost linearly with the nominal Eu2O3 content. The observed significant improvement in Jc(H) and Hirr in the Eu2O3-doped MgB2 samples, thus is mainly attributed to the lattice distortions introduced by Eu2O3 doping.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica C: Superconductivity - Volume 469, Issue 14, 15 July 2009, Pages 846-851
Journal: Physica C: Superconductivity - Volume 469, Issue 14, 15 July 2009, Pages 846-851
نویسندگان
N. Ojha, V.K. Malik, C. Bernhard, G.D. Varma,