近十年来 ,超导材料的开发有了突破性的进展。超导材料已由低温超导材料 (ＬＴＳ)发展到高温超导材料(ＨＴＳ)。所谓低温超导材料是超导临界温度为液氦(4.2Ｋ)温区的超导材料 ,而高温超导材料是超导临界温度为液氮 (77Ｋ)温区及以上的超导材料。显然 ,由于液氮的成本很低 ,ＨＴ Over the past decade, the development of superconducting materials has made a breakthrough. Superconducting materials have evolved from low temperature superconducting materials (LTS) to high temperature superconducting materials (HTS). The so-called low-temperature superconducting material is a superconducting material with superconducting critical temperature in the liquid helium (4.2K) temperature range, while the superconducting material is a superconducting material with a superconducting critical temperature of liquid nitrogen (77K) and above. Obviously, due to the low cost of liquid nitrogen, HT