کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1819194 | 1026051 | 2010 | 6 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Analytic expressions for critical-state ac susceptibility of rectangular superconducting films in perpendicular magnetic field Analytic expressions for critical-state ac susceptibility of rectangular superconducting films in perpendicular magnetic field](/preview/png/1819194.png)
A set of analytic expressions for the critical-state magnetization and ac susceptibility χ′-jχ″χ′-jχ″ curves of rectangular superconducting films of arbitrary aspect ratio in perpendicular field is obtained. They are formulated based on the exact/accurate high/low-field limits for rectangular films together with the exact analytic formulas for thin circular disks. Thus, the accuracy of the expressions is very high in high and low fields. At a characteristic intermediate field amplitude, where χ″χ″ takes its maximum, the error is checked by direct numerical calculations to be well below 1%. Thus, the provided expressions can be conveniently and satisfactorily used for practical and theoretical researches of superconducting materials, such as coated conductors.
Journal: Physica C: Superconductivity - Volume 470, Issue 1, 1 January 2010, Pages 89–94