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题目（Title）：
Computational Design of Charge Density Wave and Superconducting Materials
主讲人（Speaker）：
司晨
开始时间（Start Time）：
2024-12-18 10:00
结束时间（End Time）：
2024-12-18 11:30
报告地点（Place）：
物质学院5-103教室
主办单位（Organization）：
物质科学与技术学院
协办单位(Co-organizer)：
简介（Brief Introduction）：
报告人简介：
司晨，北京航空航天大学材料科学与工程学院副教授，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、超导材料等低维量子材料的第一原理计算设计和物性调控。在Phys. Rev. Lett.、Adv. Mater. 等国际知名期刊发表论文60余篇，论文被引用5000余次，h因子27，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（2022）、英国皇家化学会高被引作者（2021）等荣誉。
讲座摘要：
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 Tc among all known Q1D superconductors [1]. 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 [2–4].
[1] Phys. Rev. Lett. 133, 236001 (2024)
[2] Phys. Rev. B 109, 104107 (2024)
[3] Adv. Funct. Mater. 33, 2214583 (2023)
[4] Nano Res. 16, 11521 (2023)
邀请人：贺文宇
司晨，北京航空航天大学材料科学与工程学院副教授，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、超导材料等低维量子材料的第一原理计算设计和物性调控。在Phys. Rev. Lett.、Adv. Mater. 等国际知名期刊发表论文60余篇，论文被引用5000余次，h因子27，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（2022）、英国皇家化学会高被引作者（2021）等荣誉。
讲座摘要：
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 Tc among all known Q1D superconductors [1]. 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 [2–4].
[1] Phys. Rev. Lett. 133, 236001 (2024)
[2] Phys. Rev. B 109, 104107 (2024)
[3] Adv. Funct. Mater. 33, 2214583 (2023)
[4] Nano Res. 16, 11521 (2023)
邀请人：贺文宇
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