铁基超导体的单晶生长及磁通动力学研究进展  

Progress on the crystal growth and vortex dynamics of ironbased superconductors

作　　者：王春雷 易晓磊 邢相灼 孙悦 施智祥 WANG ChunLei;YI XiaoLei;XING XiangZhuo;SUN Yue;SHI ZhiXiang(School of Physics,Southeast University,Nanjing 211189,China;School of Physics and Electronic Engineering,Xinyang Normal University,Xinyang 464000,China;School of Physics and Physical Engineering,Qufu Normal University,Qufu 273165,China)

机构地区：[1]东南大学物理学院,南京211189 [2]信阳师范大学物理电子工程学院,信阳464000 [3]曲阜师范大学物理工程学院,曲阜273165

出　　处：《中国科学：物理学、力学、天文学》2023年第12期86-110,共25页Scientia Sinica Physica,Mechanica & Astronomica

基　　金：国家重点研发计划(编号:2018YFA0704300);国家自然科学基金(编号:U1932217)资助项目。

摘　　要：铁基超导体具有上临界场高、临界电流密度大且各向异性小等优点,在超导强场磁体、可控核聚变、粒子加速器等国计民生领域具有重要的应用前景.对铁基超导体磁通动力学的研究,一方面可以进一步加深对磁通物理学的认知,同时也可为设计制造性能优异的铁基超导材料提供技术支持.本文首先简要介绍了典型铁基超导单晶材料的合成技术,包括熔融法、助熔剂法、化学气相输运法、热液法等;然后分别从铁基超导体的磁通及磁通晶格结构、磁通钉扎及磁通动力学等方面简要总结了相关研究进展.Iron-based superconductors usually possess high upper-critical fields,small anisotropy,and large critical current density;therefore,they have potential applications in ultra-high field magnets,controllable fusion devices,and accelerators for high-energy particles.Investigation of vortex dynamics of superconductors can promote understanding of the physics of vortex matters and provide considerable technical support for fabricating high-performance superconducting materials.This paper first reviews several methods,such as melting,flux,chemical vapor transport,and hydrothermal methods,for fabricating single crystals of iron-based superconductors.In addition,the research development on the vortex lattice structures,flux pinning,and vortex dynamics of iron-based superconductors are reported.

关 键 词：铁基超导体 晶体生长 磁通晶格结构 磁通钉扎 磁通动力学 

分 类 号：O469[理学—凝聚态物理]