کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1817314 1525686 2016 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Superconductivity in MgB2 irradiated with energetic protons
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
Superconductivity in MgB2 irradiated with energetic protons
چکیده انگلیسی


• Bulk polycrystalline MgB2 irradiated with high energy protons.
• High resolution electron microscopy of proton irradiated MgB2.
• DC susceptibility shows a decrease of Meissner fraction.
• The superconducting screening suggests a defect organization at high fluences
• High field critical current density and pinning energy substantially increase.

A series of MgB2 samples were irradiated with protons of 11.3 and 13.2 MeV. Magnetization data shows an insignificant reduction of the critical temperatures but a continuous decrease of the Meissner fraction with increasing fluence or energy. All samples show a consistent improvement of the critical current density compared to the virgin sample and an increase of the pinning energy at high fields as resulted from relaxation data.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica C: Superconductivity and its Applications - Volume 528, 15 September 2016, Pages 27–34
نویسندگان
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