三维Dirac半金属Cd3As2中杂质调制的超快载流子动力学

2021 46th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz) Pub Date : 2021-08-29 DOI:10.1109/IRMMW-THz50926.2021.9567640

Wenjie Zhang, Yunkun Yang, Peng Suo, Xian Lin, F. Xiu, G. Ma

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引用次数: 0

摘要

在这项工作中，我们使用光泵浦-太赫兹(THz)探针光谱研究了砷化镉(Cd3As2)中杂质诱导的拓扑相变和光诱导载流子行为，这是一种三维狄拉克半金属。通过比较不同温度和泵浦流量下的载流子动力学，讨论了杂质引起的载流子动力学和物理机理。

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Impurity-modulated ultrafast carrier dynamics in 3D Dirac semimetal Cd3As2

In this work, we use optical pump-terahertz (THz) probe spectroscopy to investigated the impurity-induced topological phase transition and the photo-induced carrier behavior in cadmium arsenide (Cd3As2), a three-dimensional Dirac semimetal. By comparing the dynamics of different temperature and pump fluence, we discuss the carrier dynamics and physical mechanism caused by impurity.

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2021 46th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz)

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