کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1625571 | 1516432 | 2007 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Critical currents of (Tl0.5Pb0.5)(Sr0.85Ba0.15)2Ca2Cu3Oz films on untextured silver substrates
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Critical currents of (Tl0.5Pb0.5)(Sr0.85Ba0.15)2Ca2Cu3Oz films on untextured silver substrates Critical currents of (Tl0.5Pb0.5)(Sr0.85Ba0.15)2Ca2Cu3Oz films on untextured silver substrates](/preview/png/1625571.png)
چکیده انگلیسی
Superconducting (Tl0.5Pb0.5)(Sr0.85Ba0.15)2Ca2Cu3Oz films were prepared on highly polished, untextured silver substrates. A superconducting transition temperature (Tc) of 114.9 ± 0.1 K was obtained from the resistivity versus temperature measurements for different applied ac currents. The temperature dependence of the critical current was fitted with a power law: Jc(T) = Jc(0)[1 â T/Tc]n with n = 2. The critical current in self-field at 77 K was found to be 8 Ã 103 A/cm2. The temperature dependence of the real and imaginary parts of ac susceptibility was measured for different amplitudes of ac magnetic field. Only a small differences of the ac susceptibility for parallel and perpendicular fields with respect to the film surface were observed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 442, Issues 1â2, 13 September 2007, Pages 209-212
Journal: Journal of Alloys and Compounds - Volume 442, Issues 1â2, 13 September 2007, Pages 209-212
نویسندگان
W.M. Woch, R. Zalecki, A. KoÅodziejczyk, C. Deinhofer, G. Gritzner,