主讲人：陈杰 教授（同济大学）

题目：Phonon Transport in Low-Dimensional Materials

时间：2024年07月21日下午16：30

地点：理工楼1215

报告摘要：

Nanoscale heat conduction has attracted substantial recent interests due to both the technological importance of thermal management in nanoelectronic devices and the scientific merits of novel transport physics. In this talk, I will present the recent theoretical advances in my group on the phonon transport in low-dimensional materials from the following three aspects. First, I shall discuss the novel phonon transport mechanisms, including the phonon hydrodynamics, the coherent phonon transport in periodic nanostructures, and a generalized decay law for thermal phonons. The impact of phonon coherence on thermal transport will be revealed, and a few examples will be discussed as the applications of the theories. Then, I will discuss the interfacial heat transfer mechanisms in 2D heterogeneous systems, including solid/solid interface under inter-layer rotation and solid/liquid interface with surface modifications. In particular, I will demonstrate the power of atomic level simulations in probing the novel interfacial phenomena different from the bulk case. Finally, I will briefly mention the advantages of atomic simulations combined with machine learning techniques for studying heat conduction in realistic materials, such as the multiple-target predictions, high-order anharmonicity, and structure optimization.

个人简介：

陈杰，国家级青年人才，同济大学物理科学与工程学院副院长，长聘教授，博士生导师。主要从事声子学和纳米尺度热传导领域的研究工作，已在Reviews of Modern Physics, Physics Reports，Physical Review Letters等国际知名学术期刊发表SCI论文80余篇，含ESI高被引论文10篇和ESI热点论文3篇。全部论文在Web of Science数据库中被引用超5000余次，H因子39。主持国家自然科学基金面上和青年项目等国家级科研项目5项、上海市自然科学基金等省部级科研项目3项，参与国家自然科学基金重大项目一项、国家重点研发计划两项。受邀在国际会议上做邀请报告20余次，授权国际发明专利1项。曾获国家级青年人才、上海市青年五四奖章、上海市曙光计划、全球前2%顶尖科学家等奖励与荣誉。