Assessment of the local supercurrent densities in long superconducting coated conductors

被引：20

作者：

Zehetmayer, M. ^{[1
]}

Fuger, R. ^{[1
]}

Eisterer, M. ^{[1
]}

Hengstberger, F. ^{[1
]}

Weber, H. W. ^{[1
]}

机构：

[1] Univ Vienna, Inst Atom, A-1020 Vienna, Austria

来源：

APPLIED PHYSICS LETTERS | 2007年 / 90卷 / 03期

基金：

奥地利科学基金会; 欧盟地平线“2020”;

关键词：

D O I：

10.1063/1.2431472

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The authors report on measurements of the local supercurrent density in long Y1Ba2Cu3O7-delta based coated conductors by the magnetoscan technique. Significant inhomogeneities were found, which are well resolved by the resulting magnetic field map. A single central line scan along the length of the conductor reflects the inhomogeneities over the entire width of the sample, thus offering the possibility of very fast characterization. Modifying the applied field leads to different results highlighting either the overall critical current or details of the defect structure. In addition, numerical simulations of the current dynamics were carried out for a qualitative and quantitative interpretation of the results. (c) 2007 American Institute of Physics.

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页数：3

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