Superconducting ternary hydrides:progress and challenges  

作　　者：Wendi Zhao Xiaoli Huang Zihan Zhang Su Chen Mingyang Du Defang Duan Tian Cui 

机构地区：[1]Institute of High Pressure Physics,School of Physical Science and Technology,Ningbo University,Ningbo 315211,China [2]State Key Laboratory of Superhard Materials,College of Physics,Jilin University,Changchun 130012,China

出　　处：《National Science Review》2024年第7期41-55,共15页国家科学评论（英文版）

基　　金：supported by the National Natural Science Foundation of China(52072188,12122405 and 12274169);the Program for Science and Technology Innovation Team in Zhejiang(2021R01004);the Jilin Provincial Science and Technology Development Project(20210509038RQ).

摘　　要：Since the discovery of the high-temperature superconductors H3S and LaH10 under high pressure,compressed hydrides have received extensive attention as promising candidates for room-temperature superconductors.As a result of current high-pressure theoretical and experimental studies,it is now known that almost all the binary hydrides with a high superconducting transition temperature(T_(c))require extremely high pressure to remain stable,hindering any practical application.In order to further lower the stable pressure and improve superconductivity,researchers have started exploring ternary hydrides and had many achievements in recent years.Here,we discuss recent progress in ternary hydrides,aiming to deepen the understanding of the key factors regulating the structural stability and superconductivity of ternary hydrides,such as structural motifs,bonding features,electronic structures,electron–phonon coupling,etc.Furthermore,the current issues and challenges of superconducting ternary hydrides are presented,together with the prospects and opportunities for future research.

关 键 词：high pressure ternary hydrides conventional superconductivity electron–phonon coupling 

分 类 号：O511[理学—低温物理] TQ125.12[理学—物理]