INDUCTIVE DETERMINATION OF THE CRITICAL-CURRENT DENSITY OF SUPERCONDUCTING THIN-FILMS WITHOUT LATERAL STRUCTURING

被引：27

作者：

HOCHMUTH, H

LORENZ, M

机构：

[1] Universität Leipzig, Fachbereich Physik, D-04103Leipzig

来源：

PHYSICA C | 1994年 / 220卷 / 1-2期

关键词：

D O I：

10.1016/0921-4534(94)90903-2

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A method is proposed for inductive measurement of the critical current density j(c) of HTSC thin films without lateral structuring on the base of a simple two-coil arrangement. The magnetic shielding of the HTSC thin film is measured in dependence on temperature and AC current in the primary coil. In order to obtain the value of the critical current density the geometry of the induced current-density distribution in the HTSC thin film was calculated for T<T-c (full shielding) by a finite element solution of the system of integral equations for the magnetic vector potential.

引用

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页码：209 / 214

页数：6

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