三元运算
超导电性
氢化物
凝聚态物理
兴奋剂
材料科学
高压
声子
密度泛函理论
二进制数
物理
氢
热力学
量子力学
计算机科学
数学
程序设计语言
算术
作者
Dongxu Hou,Dezhong Meng,Wen Yue,Zili Zhang,Changchun Zhao,Ruijin Sun,Wen Yue,Wen Yue
标识
DOI:10.1142/s0217984922300022
摘要
As one of the 25 physics challenges in this century, high-temperature superconductivity has been of concern for a long time. According to BCS theory, superconductivity is possible if three conditions are met, which are high-frequency phonons, strong electron–phonon coupling, and a high density of states. In theory, the metallic state of hydrogen and hydride under high pressure can satisfy the above conditions. Several binary hydride systems have been experimentally proved to be high-temperature superconductors (HTSs) at high pressure. Ternary hydrides can be regarded as the doping of binary hydrides, which have broad prospects. At present, in both experimental and theoretical research, ternary hydrides are the record holder for the highest superconducting critical temperature ([Formula: see text] which is 287 K in C–H–S system, and 473 K in Li–Mg–H system, respectively. This review will systematically describe the research status of superconductivity on ternary hydride at high pressure. Relevant theoretical research was classified according to different binary hydride doping systems. The experimental research was then introduced. In terms of experimental research, we focus on the latest research of C–S–H and La–Y–H HTSs, and overview the subsequent studies about high [Formula: see text] of C–S–H system.
科研通智能强力驱动
Strongly Powered by AbleSci AI