Dynamical Approach to Realize Room-Temperature Superconductivity in LaH$_{10}$
arxiv(2023)
摘要
Metallic hydrogen and hydride materials stand as promising avenues to achieve
room-temperature superconductivity. Characterized by their high phonon
frequencies and moderate coupling strengths, several high-pressure hydrides
were theoretically predicted to exhibit transition temperatures ($T_c$)
exceeding 250\,K, a claim further substantiated by experimental evidence. In an
effort to push $T_c$ beyond room temperature, we introduce a dynamical method
that involves stimulating hydrides with mid-infrared lasers. Employing Floquet
first-principles simulations, we observe that in a nonequilibrium state induced
by light, both the electronic density of states and the coupling to high-energy
phonons see notable enhancements. These simultaneous improvements collectively
result in an estimated 20\%-30\% rise in $T_c$ in practical pump conditions.
Our theoretical investigation, therefore, offers a novel strategy to
potentially raise the $T_c$ of hydrides above room temperature.
更多查看译文
AI 理解论文
溯源树
样例
![](https://originalfileserver.aminer.cn/sys/aminer/pubs/mrt_preview.jpeg)
生成溯源树,研究论文发展脉络
Chat Paper
正在生成论文摘要