





定价:79元
印次:1-1
ISBN:9787302639060
出版日期:2024.02.01
印刷日期:2024.01.12
图书责编:程洋
图书分类:学术专著
《狄拉克半金属的能带调控和超快动力学研究(英文版)》针对超快时间分辨角分辨光电子能谱系统的研制以及两个典型狄拉克半金属材料的电子能谱和超快动力学开展研究,取得了多项创新性研究成果。包括成功研制出光子能量连续可调的超快时间分辨角分辨光电子能谱系统,为研究三维量子材料的超快动力学提供了重要的实验手段;通过Li 插层形成凯库勒序石墨烯,首次提供了手征对称性破缺这一重要物理效应的直接实验证据;并观测到了增强的电子-声子耦合作用,以及与凯库勒序关联的平带电子结构;首次直接揭示了狄拉克半金属Cd3As2 中三维狄拉克费米子的能量、动量分辨的超快动力学过程,发现了长寿命的布居数反转效应。
鲍昌华在清华大学物理系于2016年获得数学物理基础科学学士学位,2022年获得物理学博士学位,目前在水木清华学者计划资助下开展博士后研究,专注于利用先进角分辨光电子能谱仪研究二维和拓扑材料中的新奇电子结构和光-物质相互作用。
Abstract Dirac semimetals exhibit unique electronic band structure, novel physical properties with rich light-matter interaction, and potential applications. Revealing the band engineering and ultrafast dynamics of Dirac semimetals is therefore important. In this thesis, we develop the .rst time-and angle-resolved photoemission spectroscopy (TrARPES) with tunable probe photon energy and investigate the band structure engineering and ultrafast dynamics of Dirac semimetals by utilizing such a unique TrARPES system. Below are major scienti.c achievements: (1) We report the development of a TrARPES system with a highly tunable probe photon energy from 5.3 to 7.0 eV. Our TrARPES system ha...
1 Introduction 1
1.1 Overview of Dirac Semimetal 1
1.1.1 2D Dirac Semimetal 1
1.1.2 3D Dirac Semimetal 3
1.2 Intriguing Light-Matter Interaction in Dirac Semimetal 4
1.2.1 Ultrafast Dynamics and Population Inversion 4
1.2.2 Floquet Engineering in Dirac Semimetal 6
References 10
2 Experimental Techniques 15
2.1 Angle-Resolved Photoemission Spectroscopy 15
2.1.1 Basic Principles 15
2.1.2 Instruments 18
2.2 Time- and Angle-Resolved Photoemission Spectroscopy 20
2.2.1 Basic Principles 21
2.2.2 Special Technical Considerations 22
References 24
3 Development of Novel TrARPES with Tunable Probe Photon Energy for 3D Quantum ...