摘要
富氢化合物的压致金属化和超导电性是实现金属氢和高温超导体的有效途径,已成为物理学、材料科学等学科的研究热点之一。从应用上看,富氢化合物是潜在的储氢材料,研究高压下富氢化合物结构和性质变化是提升其储氢性能的有效手段。以典型的第二主族氢化物为例,简要地介绍了第二主族氢化物在高压下的实验与理论研究成果,包括高压结构相变、新结构的稳定性以及金属化机制,并探讨不同的氢构型对压致金属化及超导电性的影响。
As an effective way to realize metal hydrogen and high-temperature superconductors, the metalization and superconductivity of hydrogen-rich compounds have become one of the hot spots of physics and materials science. In practical application, hydrogen-rich compounds are also potential hydrogen storage materials. The study of the structure and properties of hydrogen-rich compounds under high pressure is considered to be an effective means to enhance their hydrogen storage performance. In this paper, high pressure experimental and theoretical researches on the second main group hydrides,a typical kind of rich hydrogen compounds, were briefly introduced,including high pressure structural phase transition, the stability of the new structure, the mechanism of metalization. The effects of different hydrogen motifs on superconductivity were also discussed.
作者
吴刚
黄晓丽
李鑫
黄艳萍
刘明坤
崔田
WU Gang;HUANG Xiao-Li;LI Xin;HUANG Yan-Ping;LIU Ming-Kun;CUI Tian(State Key Laboratory of Superhard Materials,College of Physics, Jilin University ,Changchun 130012 ,China)
出处
《高压物理学报》
CSCD
北大核心
2017年第6期682-691,共10页
Chinese Journal of High Pressure Physics
基金
国家自然科学基金(51572108,51632002,51025206,11274137,11474127,11504127)
教育部长江学者和创新团队发展计划(IRT_15R23)
国家基础科学人才培养基金(J1103202)
高等学校学科创新引智计划(B12011)
吉林大学研究生创新基金(2016016)
关键词
金属氢化物
结构相变
金属化
高温超导
metal hydride
structural phase transition
metallization
high temperature superconductivity
