Time-domain terahertz spectroscopy in high magnetic fields
Time-domain terahertz spectroscopy in high magnetic fields
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DOI：
10.1007/s12200-020-1101-4
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发表时间：
2020-09
影响因子：
5.4
通讯作者：
A. Baydin;T. Makihara;N. M. Peraca;J. Kono
中科院分区：
文献类型：
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作者：
A. Baydin;T. Makihara;N. M. Peraca;J. Kono
在凝聚态物质中有各种基本和集体太赫兹频率激发，其磁场依赖性包含了对所涉及电子的状态和动力学的重要见解。通常，确定光学导电性张量的频率、温度和磁场依赖性，特别是在高磁场下，可以阐明固体复杂多体行为背后的微观物理。虽然有先进的太赫兹光谱技术以及高磁场产生技术，但两者的结合只是最近才实现的。本文综述了高磁场下太赫兹时域光谱（THz-TDS）实验的现状。我们首先概述时域太赫兹探测方案，特别关注它们如何被纳入光学可访问的高场磁体。讨论了不同类型磁体在进行太赫兹- tds实验时的优缺点。最后，我们重点介绍了高磁场下太赫兹- tds所揭示的一些新的令人着迷的物理现象。
There are a variety of elementary and collective terahertz-frequency excitations in condensed matter whose magnetic field dependence contains significant insight into the states and dynamics of the electrons involved. Often, determining the frequency, temperature, and magnetic field dependence of the optical conductivity tensor, especially in high magnetic fields, can clarify the microscopic physics behind complex many-body behaviors of solids. While there are advanced terahertz spectroscopy techniques as well as high magnetic field generation techniques available, a combination of the two has only been realized relatively recently. Here, we review the current state of terahertz time-domain spectroscopy (THz-TDS) experiments in high magnetic fields. We start with an overview of time-domain terahertz detection schemes with a special focus on how they have been incorporated into optically accessible high-field magnets. Advantages and disadvantages of different types of magnets in performing THz-TDS experiments are also discussed. Finally, we highlight some of the new fascinating physical phenomena that have been revealed by THz-TDS in high magnetic fields.