Interpretation of time-dependent current and resistance of HTS closed loop with superconducting joint considering flux creep

IF 2.3 4区物理与天体物理 Q3 PHYSICS, APPLIED

Applied Physics Express Pub Date : 2023-09-07 DOI:10.35848/1882-0786/acf7a9

Y. Takeda, Y. Tsuchiya, Gen Nishijima

引用次数: 1

Abstract

A low circuit resistance is required for a superconducting magnet operated in persistent mode using superconducting joints. We performed current decay measurements on a high-temperature superconducting (HTS) closed loop with a superconducting joint to evaluate the time dependence of the current and resistance. The results have been quantitatively explained by considering current sharing and flux creep. After the elapse of 105 s, current sharing was suppressed and a circuit resistance of less than 10−13 Ω was observed. The main finding is that joint resistance of an HTS closed loop is inversely proportional to time, contributing to low circuit resistance.

查看原文本刊更多论文

考虑磁通蠕变的高温超导闭环电流和电阻随时间变化的解释

使用超导接头以持续模式操作的超导磁体需要低电路电阻。我们在具有超导接头的高温超导（HTS）闭环上进行了电流衰减测量，以评估电流和电阻的时间依赖性。通过考虑电流共享和磁通蠕变，对结果进行了定量解释。经过105 s后，均流被抑制，观察到电路电阻小于10−13Ω。主要发现是HTS闭环的接头电阻与时间成反比，导致电路电阻较低。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Applied Physics Express 物理-物理：应用

CiteScore

4.80

自引率

8.70%

发文量

310

审稿时长

1.2 months

期刊介绍： Applied Physics Express (APEX) is a letters journal devoted solely to rapid dissemination of up-to-date and concise reports on new findings in applied physics. The motto of APEX is high scientific quality and prompt publication. APEX is a sister journal of the Japanese Journal of Applied Physics (JJAP) and is published by IOP Publishing Ltd on behalf of the Japan Society of Applied Physics (JSAP).