一、广泛的实用性对21世纪的技术来说,1987年是个大的转折点。原来估计在21世纪才能实现的高温超导现象,在这年就被发现了,并且已发现了临界温度100K的新材料。这些新型高温超导材料的发现,对人类社会及工业界产生了很大影响,实际上成了几十年来的一个重大事件而席卷了全世界。如果从物性物理的观点来看这次发现,那么可以说,这10年来的工作已 First, a wide range of practical For the 21st century technology, 1987 is a big turning point. The high-temperature superconductivity, originally estimated to be achievable in the 21st century, was discovered this year and new materials with a critical temperature of 100K have been found. The discovery of these new high-temperature superconducting materials has had a great impact on human society and industry and in fact has become a major event in decades sweeping the world. If we look at this discovery from the point of view of physical physics, then we can say that over the past 10 years the work has been done