کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9841806 | 1525798 | 2005 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of controlled densities of columnar defects on pinning parameters in YBa2Cu3O7âδ thin films
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
![عکس صفحه اول مقاله: Effect of controlled densities of columnar defects on pinning parameters in YBa2Cu3O7âδ thin films Effect of controlled densities of columnar defects on pinning parameters in YBa2Cu3O7âδ thin films](/preview/png/9841806.png)
چکیده انگلیسی
We have studied the effect of the densities of columnar defects on pinning parameters in YBa2Cu3O7âδ thin films prepared by the PLD method with the transport measurements. In order to produce the defects artificially in a controlled manner, the heavy-ions were irradiated onto the films. The critical current density Jc increases with the doses of the irradiation due to the introduction of the strong pinning sites into samples. The dynamic critical exponent z, which is also one of the pinning parameters in the percolation model, increases with the densities of the irradiation defects. It should be noted that the values of z abruptly increase near a third part of the matching magnetic field, which is independent on the fluence of the irradiation. These results could be described by the percolation model as a variation of pinning strength distribution affected from the induced defects.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica C: Superconductivity and its Applications - Volume 424, Issues 3â4, 15 August 2005, Pages 153-158
Journal: Physica C: Superconductivity and its Applications - Volume 424, Issues 3â4, 15 August 2005, Pages 153-158
نویسندگان
T. Sueyoshi, S. Inada, T. Ueno, N. Jyodai, T. Fujiyoshi, K. Miyahara, T. Ikegami, K. Ebihara, R. Miyagawa, Y. Chimi, N. Ishikawa,