Oxygen-free Copper at 4 K: Resistance and magnetoresistance
Oxygen-free Copper at 4 K: Resistance and magnetoresistance
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DOI：
10.1109/tmag.1983.1062352
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发表时间：
1983-05
影响因子：
2.1
通讯作者：
F. Fickett
中科院分区：
文献类型：
--
作者：
F. Fickett
无氧铜是稳定实际超导体最常用的材料。这种类型的铜在完全软状态下可能显示残余电阻比（RRR），从50到700不等。准确的RRR值对于优化系统设计通常是必不可少的。我们研究了应力、回火和再退火对数百种不同来源的无氧铜的RRR和磁电阻的影响。在本文中，我们描述了该程序，并给出了迄今为止获得的结果的抽样。
Oxygen-free copper is the most common material used for stabilizing practical superconductors. This type of copper may show residual resistance ratios (RRR) that vary from 50 to 700 in the full soft condition. Knowledge of the exact RRR value is often essential for optimum system design. We have investigated the effect of stress, temper, and reanneal on the RRR and magnetoresistance of several hundred samples of oxygen-free copper from many sources. In this paper we describe the program and present a sampling of the results obtained to date.