کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1817586 1525695 2015 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
AC losses in superconductors with a power-law constitutive relation
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
AC losses in superconductors with a power-law constitutive relation
چکیده انگلیسی
The observed constitutive relation between the electrical field and current density in cuprates high temperature superconductors is a power-law of the current. This functional dependence is presumably related to the giant flux-creep domain. It is shown that this constitutive relation reflects the statistical spread of the pinning potential associated with creep motion of vortex bundles. The AC losses emanating from a power-law constitutive relation are calculated in an approach focused on the superconductor's electric field. For a slab geometry in the presence of a parallel AC magnetic field or transport current, the calculated AC-loss scaling laws are consistent with BSCCO data and the critical state model. Extensions of the approach are briefly discussed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica C: Superconductivity and its Applications - Volume 517, 15 October 2015, Pages 41-48
نویسندگان
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