کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1819018 | 1026042 | 2008 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Depinning frequency in a heavily neutron-irradiated MgB2 sample
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک ماده چگال
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چکیده انگلیسی
The magnetic-field-induced variations of the microwave surface resistance have been investigated in a heavily neutron-irradiated MgB2 sample, in which the irradiation has caused the merging of the two gaps into a single value. The experimental results have been analyzed in the framework of the Coffey and Clem model. By fitting the experimental data, we have determined the field dependence of the depinning frequency, Ï0, at different values of the temperature. Although the pinning is not particularly effective, the value of Ï0 obtained at low temperatures is considerably higher than that observed in conventional low-temperature superconductors.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica C: Superconductivity and its Applications - Volume 468, Issue 24, 15 December 2008, Pages 2372-2377
Journal: Physica C: Superconductivity and its Applications - Volume 468, Issue 24, 15 December 2008, Pages 2372-2377
نویسندگان
M. Bonura, A. Agliolo Gallitto, M. Li Vigni, A. Martinelli,