Determination of currents in flat superconductors.
Determination of currents in flat superconductors.
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DOI：
10.1103/physrevb.46.8628
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发表时间：
1992-10
期刊：
影响因子：
--
通讯作者：
Brandt
中科院分区：
文献类型：
--
作者：
Brandt
当测量垂直于平面超导体表面的磁场{ital H}{次{ital x}}（{ital y},{ital z}）时，给出了电流{ital I}（{ital y},{ital z}）的显式表达式，例如，通过在试样表面蒸发的薄硒化铕层中的法拉第效应。对长扁带的分析结果特别有指导意义，显示了在电流和场中发生的奇点类型。在任意形状的扁平导体中，电流的通解是在{整数H}{下标{整数x}}（{整数y}，{整数z}）上的积分乘以迭代后的积分核。
Explicit expressions are given for the current {ital I}({ital y},{ital z}) in a flat superconductor when the magnetic field {ital H}{sub {ital x}}({ital y},{ital z}) perpendicular to its surface is measured, e.g., by the Faraday effect in a thin europium selenide layer evaporated on the specimen surface. The analytical results for a long flat strip are particularly instructive, showing what type of singularities occurs in the current and field. The general solution for the current in flat conductors of arbitrary shape is given in form of an integral over {ital H}{sub {ital x}}({ital y},{ital z}) times an integral kernel that follows from an iteration.