[1]段德芳,邵子霁,马艳斌,等.高压下三氢化硫H3S的高温超导电性研究进展[J].中国材料进展,2017,(10):031-35.[doi:10.7502/j.issn.1674-3962.2017.10.00]
 DUAN Defang,SHAO Ziji,Ma Yanbin,et al.Review of high temperature superconductivity of sulphur trihydrides H3S under high pressure[J].MATERIALS CHINA,2017,(10):031-35.[doi:10.7502/j.issn.1674-3962.2017.10.00]
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高压下三氢化硫H3S的高温超导电性研究进展()
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中国材料进展[ISSN:1674-3962/CN:61-1473/TG]

卷:
期数:
2017年第10期
页码:
031-35
栏目:
前沿综述
出版日期:
2017-10-31

文章信息/Info

Title:
Review of high temperature superconductivity of sulphur trihydrides H3S under high pressure
作者:
段德芳邵子霁马艳斌崔田
吉林大学物理学院超硬材料国家重点实验室
Author(s):
DUAN Defang SHAO Ziji Ma Yanbin CUI Tian
State Key Laboratory of Superhard Materials, College of Physics, Jilin University
关键词:
高压三氢化硫H3S富氢材料 超导电性金属化
Keywords:
High Pressure Sulphur trihydrides H3S Hydrogen-rich materials Superconductivity Metallization
DOI:
10.7502/j.issn.1674-3962.2017.10.00
文献标志码:
A
摘要:
高压下富氢材料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,已经成为物理学、材料科学等多学科的热点领域之一。最近在高压下发现的三氢化硫H3S,因其200 K的超导转变温度刷新了高温超导纪录,向室温超导体的实现迈出重要的一步,引起了国际上的广泛关注。是什么使得三氢化硫H3S如此特殊?它的创纪录的Tc、简单的晶体结构和奇异电子态密度使得H3S成为潜在的高温超导材料,进一步推动了人们对高压下富氢材料超导电性的研究。在过去两年时间内,人们通过各种实验技术和理论方法研究H3S在高压下的超导电性、同位素效应、元素的掺杂效应、探索超导的内在物理原因等等。目前理论和实验都一致认为高压下可以通过两种途径获得H3S:3H2S→2H3S+S,2H2S+H2→2H3S。本文对高温超导体三氢化硫(H3S)的发现、影响H3S高温超导的内在物理原因、同位素效应随压力的变化、掺杂对H3S超导转变温度的影响以及高压下硫化氢(H2S)的分解进行简要介绍。
Abstract:
Hydrogen-rich materials which are potential high-temperature superconductors, and also believed to be an effective way to the metallization of hydrogen, have attracted significant interest in lots of fields, such as physics, material science and so on. Recently, the discovery of high-pressure superconductivity of sulphur trihydrides (H3S) has set a record at 200 K and attracted wide attention. What makes the H3S so specical? Its high Tc, simple crystal structure, novel density of states that H3S will be potental high tempreture superconductor, and inspired further efforts to research the superconductivity of hydrogen-rich materials. During the last two years, the superconductivity, isotopc effect, element doping effect, the inner physical relationship have been studied by means of the high pressure experimental measurements and first-principles calculations. Recently, a consensus has been reached between theroretical and experimental studies that H3S that hardly occur at atmospheric pressure can be formed at high pressure by two main ways: 3H2S→2H3S+S,2H2S+H2→2H3S. In this work, the discovery of high temperature superconductor sulphur trihydrides H3S, the inner relationship between crystal structure, electronic structure and superconductivity, the pressure dependence of isotope?e?ect, the influence of doping on superconducting transition temperature of H3S, and the decomposition of H2S under high pressure have been discussed.
更新日期/Last Update: 2017-09-26