报告题目：电荷密度波和超导材料的计算设计

报 告 人：司晨 副教授，北京航空航天大学

报告时间：2024年12月27日（周五），上午 9:00-10:00

报告地点：物理楼313会议室

邀 请 人：路洪艳 教授

报告摘要：

Superconductivity and charge density waves (CDWs) are two fascinating quantum phenomena in solid-state materials, both typically linked to electron-phonon coupling. In this report, I will present our recent advances in the design of materials exhibiting these phenomena. First, we propose an effective multi-orbital strategy to suppress electronic instabilities and significant quantum fluctuations in quasi-one-dimensional (Q1D) superconductors. Using this strategy, we have designed a chain-like Q1D material, NaBe, which may exhibit a record-high T_c among all known Q1D superconductors. Second, we predict the emergence of charge density waves and Ising superconductivity in certain two-dimensional (2D) transition metal dichalcogenides (TMDCs), including HfTe₂, TaSe₂, and TaTe₂. Our findings show that these properties can be effectively tuned by controlling the thickness and stacking order of the TMDC layers.

报告人简介：

司晨，北京航空航天大学材料学院副教授，博士生导师。2014年博士毕业于清华大学物理系。研究领域为计算材料学，主要从事电荷密度波材料和超导材料等低维量子材料的计算设计。以第一或通讯作者发表包括Physical Review Letters（3篇）、Advanced Materials/Advanced Functional Materials/Advanced Science（5篇）、Nano Letters（4篇）、Physical Review B（6篇）等著名期刊论文在内的SCI论文34篇，被引5000余次，h因子28。主持国家自然科学基金项目3项，曾获教育部自然科学一等奖（2023）、英国皇家化学会高被引作者（2021）等荣誉。

供稿审核：刘广强

编辑审核：王文志

终审：满忠晓