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arXiv 1402.0230cond-mat.supr-con
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超导薄膜中的电流状态:数值结果和近似

Current states in superconducting films: numerical results and approximations

E. V. Bezuglyi

摘要:

本文给出了Aslamazov和Lempitskiy(AL)方程在Meissner态和涡旋态下无外磁场时超导薄膜中输运电流密度分布的数值解。该解决方案描述了一个宽的膜和一个窄的通道之间的政权的平滑过渡,使我们能够找到的临界电流和电流-电压特性在很宽的范围内的膜的宽度和温度。我们提出了简单的近似公式的电流密度分布和临界电流。

英文摘要:

We present numerical solution of equations by Aslamazov and Lempitskiy (AL) for the distribution of the transport current density in thin superconducting films in the absence of external magnetic field, in both the Meissner and the vortex states. This solution describes smooth transition between the regimes of a wide film and a narrow channel and enables us to find the critical currents and current-voltage characteristics within a wide range of the film width and temperatures. We propose simple approximating formulas for the current density distributions and critical currents.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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