Pressure-induced hydrogen-dominant high-temperature superconductors  

作　　者：Ho-kwang Mao 

机构地区：[1]Shanghai Advanced Research in Physical Sciences,Shanghai,China [2]Center for High Pressure Science and Technology Advanced Research,Beijing,China

出　　处：《National Science Review》2024年第7期8-10,共3页国家科学评论（英文版）

基　　金：financial support from Shanghai Science and Technology Committee,China(22JC1410300);Shanghai Key Laboratory of Novel Extreme Condition Materials,China(22dz2260800).

摘　　要：Recent studies of hydrogen-dominant (superhydride) materials have led to putative discoveries of near-room temperature superconductivity at high pressures. The idea started more than half-a-century ago as a by-product of the quest for metallic hydrogen for which a natural consequence of its very high Debye temperature and phonon frequency due to the very low mass of the hydrogen atoms would lead to a high superconducting critical temperature (T_(c)) in weak coupling Bardeen-Cooper-Schrieffer (BCS) expression. Early pursuits were unsuccessful in that pressure-induced hydrogen-dominant compounds were either non-superconducting or superconducting with a low T_(c), until the major theoretical and experimental breakthroughs of the past decade.

关 键 词：HYDROGEN HIGH BREAKTHROUGH 

分 类 号：O511[理学—低温物理]