REBCO超导接头的电阻和电压-电流特性

IF 1.7 3区物理与天体物理 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Transactions on Applied Superconductivity Pub Date : 2025-03-11 DOI:10.1109/TASC.2025.3550140

Yasuaki Takeda;Gen Nishijima;Hitoshi Kitaguchi

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引用次数: 0

摘要

讨论了REBa2Cu3Oy （REBCO, RE =稀土）中间生长超导（iGS）接头的电阻和电压电流特性。这些特性是基于一个REBCO闭环的电流衰减测量来评估的。使用经验幂律模型评估iGS接头的n值与温度和磁场的依赖关系，与REBCO磁带的观察结果相似。该渗流模型更准确地描述了iGS接头的电压-电流特性。利用10 ~ 8 V的临界电流和n值，我们可以近似估计低目标电阻的电流上限。

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Resistance and Voltage–Current Characteristics of REBCO Superconducting Joint

We discuss resistance and voltage–current characteristics of a REBa₂Cu₃O_y (REBCO, RE = rare earth) intermediate grown superconducting (iGS) joint. These characteristics are evaluated based on the current decay measurements for a REBCO closed loop. The temperature and magnetic field dependencies of the n value for the iGS joint, assessed using an empirical power-law model, are similar to those observed for REBCO tapes. The percolation model describes the voltage–current characteristics of the iGS joint more accurately. Using the critical current and n values at 10⁻⁸ V, we can approximately estimate the upper limit of the current for a low target resistance.

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来源期刊

IEEE Transactions on Applied Superconductivity 工程技术-工程：电子与电气

CiteScore

3.50

自引率

33.30%

发文量

650

审稿时长

2.3 months

期刊介绍： IEEE Transactions on Applied Superconductivity (TAS) contains articles on the applications of superconductivity and other relevant technology. Electronic applications include analog and digital circuits employing thin films and active devices such as Josephson junctions. Large scale applications include magnets for power applications such as motors and generators, for magnetic resonance, for accelerators, and cable applications such as power transmission.