探索非常规高温超导体  

Searching for new unconventional high temperature superconductors

作　　者：胡江平 Hu Jiang-Ping(Beijing National Laboratory for Condensed Matter Physics,Institute of Physics,Chinese Academy of Sciences,Beijing 100190,China;CAS Center of Excellence in Topological Quantum Computation and Kavli Institute of Theoretical Sciences,University of Chinese Academy of Sciences,Beijing 100190,China)

机构地区：[1]中国科学院物理研究所,北京凝聚态物理国家研究中心,北京100190 [2]中国科学院大学,卡弗里理论科学中心,北京100049

出　　处：《物理学报》2021年第1期3-10,共8页Acta Physica Sinica

基　　金：国家自然科学基金(批准号:NSFC11888101);中国科学院战略先导项目(批准号:XDB28000000)资助的课题.

摘　　要：近年来,在理解铜基和铁基非常规高温超导体共性的基础上,提出了非常规高温超导体电子结构基因的概念,指出实现高温超导,需要“参与强反铁磁超交换耦合的d电子轨道独立于其他轨道单独出现在费米能级附近”.本文总结这方面的进展,讨论几类满足高温超导基因的结构以及和此类基因匹配的可能材料,探讨寻找非常规高温超导体新体系的可能性.Based on the common properties exhibited in both cuprates and iron-based high temperature superconductors,we have recently proposed the“gene”concept for unconventional high temperature superconductors:those d-orbitals of transition metal elements with the strongest in-plane bonding to anion porbitals must be isolated near Fermi energy.Here we summarized recent progress in this research direction and discussed several electronic environments that meet the“gene”condition.We also discussed the challenge and the possibility in finding new unconventional high temperature superconductors.

关 键 词：铜氧化物超导体 铁基超导体 非常规高温超导体 反铁磁超交换 高温超导基因 

分 类 号：TM26[一般工业技术—材料科学与工程]