Ternary superhydrides for high-temperature superconductivity at low pressures  

作　　者：Pengfei Shan Liang Ma Jinguang Cheng 

机构地区：[1]Beijing National Laboratory for Condensed Matter Physics and Institute of Physics,ChineseAcademy of Sciences,China [2]School of Physical Sciences,University of Chinese Academy ofSciences,China [3]Key Laboratory of Materials Physics,Ministry of Education,School of Physics and Microelectronics,Zhengzhou University,China

出　　处：《National Science Review》2024年第7期6-8,共3页国家科学评论（英文版）

基　　金：supported by the National Key Research and Development Program of China(2021YFA1400200);the National Natural Science Foundation of China(12025408,11921004 and 11888101);Beijing Natural Science Foundation(Z190008);the Strategic Priority Research Program of CAS(XDB33000000);the Users with Excellence Program of Hefei Science Center CAS(2021HSCUE008).

摘　　要：The quest for room-temperature superconductivity(RTSC)has been a longstanding pursuit in physics since the discovery of superconductivity in 1911.According to the conventional Bardeen-Cooper-Schrieffer theory,atomic metallic hydrogen holds great promise for achieving this goal due to its high Debye temperature and strong electron-phonon coupling.However,metallization of solid hydrogen remains uncertain at pressures up to 400 GPa,the current upper limit of static high-pressure techniques.In 2004,Ashcroft proposed an alternative approach to realize high-Curie-temperature(T_(c))superconductivity in hydrogen-rich materials(hydrides)at attainable pressures due to the chemical precompression effect[1].This concept has stimulated extensive theoretical and experimental investigations into hydride superconductors,for which significant advancements have been achieved in recent years,reigniting the hope of realizing RTSC.

关 键 词：hydrides SUPERCONDUCTIVITY HIGH 

分 类 号：O511.3[一般工业技术—材料科学与工程]