中国物理B ›› 2014, Vol. 23 ›› Issue (5): 57403-057403.doi: 10.1088/1674-1056/23/5/057403
• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇 下一篇
江涛a, 贺斐思a, 焦飞a, 何法a, 鲁向阳a, 赵夔a, 赵红运b, 游雨松b, 陈林b
Jiang Tao (江涛)a, He Fei-Si (贺斐思)a, Jiao Fei (焦飞)a, He Fa (何法)a, Lu Xiang-Yang (鲁向阳)a, Zhao Kui (赵夔)a, Zhao Hong-Yun (赵红运)b, You Yu-Song (游雨松)b, Chen Lin (陈林)b
摘要: A new idea is proposed by the PKU group to improve the magnetic properties of the Type-Ⅱ superconductor niobium. Rare earth elements like scandium and yttrium are doped into ingot niobium during the smelting processes. A series of experiments have been done since 2010. The preliminary testing results show that the magnetic properties of niobium materials have changed with different doping elements and proportions while the superconductive transition temperature does not change very much. This method may increase the superheating magnetic field of niobium so as to improve the performance of the niobium cavity, which is a key component of SRF accelerators. A Tesla-type single-cell cavity made of scandium-doped niobium is being fabricated.
中图分类号: (Metals; alloys and binary compounds)