新型FeSe基超导材料研究进展

Research progress on Fe Se-based superconducting materials

FeSe基超导体作为铁基超导材料家族的重要组成部分,已经成为凝聚态物理研究的一个热点领域,对这类超导材料的探索和制备是研究其物理性质的基础.目前,对于FeSe基超导材料的探索主要集中于插层和外延单层FeSe薄膜.其中,通过插层方法获得的FeSe基超导材料具有独特的性质,且种类众多.本文介绍了近年来发现的一系列FeSe基高温超导材料,涵盖K_xFe_2Se_2,A_xNH_3FeSe,LiOHFeSe和有机分子插层FeSe等,并针对各种材料,简述了其性质及影响.

FeSe-based superconductors, as an important part of the family of iron-based superconducting materials, have attracted intensive research interest in the field of condensed matter physics. The exploration and preparation of such superconducting materials is the basis for studying their physical properties. At present, the exploration of FeSebased superconducting materials mainly focuses on intercalated materials and epitaxial single-layer FeSe films. Among them, the intercalated FeSe-based superconducting materials have unique properties and are numerous in variety. This paper introduces a series of FeSe-based high-temperature superconducting materials discovered in recent years, covering KxFe2 Se2, AxNH3 FeSe, LiOHFeSe and organic molecular intercalation FeSe, etc., their properties and impacts are also briefly described.