'Magnetoscan': a modified Hall probe scanning technique for the detection of inhomogeneities in bulk high temperature superconductors

被引：61

作者：

Eisterer, M ^{[1
]}

Haindl, S ^{[1
]}

Wojcik, T ^{[1
]}

Weber, HW ^{[1
]}

机构：

[1] Univ Vienna, Atominst, A-1020 Vienna, Austria

来源：

SUPERCONDUCTOR SCIENCE & TECHNOLOGY | 2003年 / 16卷 / 11期

关键词：

D O I：

10.1088/0953-2048/16/11/005

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We present a novel technique for the investigation of local variations of the critical current density in large bulk superconductors. In contrast to the usual Hall probe scanning technique, the sample is not magnetized as a whole before the scan, but locally by a small permanent magnet, which is fixed near the Hall probe, during the scanning process. The resulting signal can be interpreted as a qualitative measure of the local shielding currents flowing at the surface.

引用

页码：1282 / 1285

页数：4

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