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2008年,日本东京工业大学Hosono研究组发现了临界转变温度为26K的铁基超导体LaFeAsO~([1]),随后中国科学家发现了临界温度超过40K的SmFeAsO和CeFeAsO超导体,均突破了麦克米兰极限温度,表明铁基超导材料是继1986年发现的铜氧化物超导体之后的新型高温超导材料。根据母体化合物的组成比和晶体结构的不同,铁基超导材料包含若干不同的类型,除了
In 2008, Hosono’s group at Tokyo Institute of Technology (KIT) discovered an iron-based superconductor LaFeAsO ~ (1) with a critical transition temperature of 26K. Subsequently, Chinese scientists found that SmFeAsO and CeFeAsO superconductors with a critical temperature exceeding 40K all broke the Macmillan limit Temperature, indicating that the iron-based superconducting material is the new high-temperature superconducting material after the copper oxide superconductor discovered in 1986. Depending on the composition ratio of the parent compound and the crystal structure, the iron-based superconducting material contains several different types except