Time-Domain Terahertz Spectroscopy in High Magnetic Fields

Abstract

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, combination of the two has only been realized relatively recently. Here, we review the current state of terahertz time-domain spectroscopy 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 terahertz time-domain spectroscopy experiments are also discussed. Finally, we highlight some of the new fascinating physical phenomena that have been revealed by terahertz time-domain spectroscopy in high magnetic fields.

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Cited by in corpus (11)

• Magnetic Control of Soft Chiral Phonons in PbTe
• Chiral Phonons with Giant Magnetic Moments in a Topological Crystalline Insulator
• Observation of the Magnonic Dicke Superradiant Phase Transition
• Evolution of the cyclotron mass with doping in La${}_{2-x}$Sr${}_x$CuO${}_4$
• Terahertz cavity magnon polaritons
• Multimode Ultrastrong Coupling in Three-Dimensional Photonic-Crystal Cavities
• Optical-pump terahertz-probe spectroscopy in high magnetic fields with kHz single-shot detection
• Magneto-optical Spectroscopy with RAMBO: A Table-Top 30 T Magnet
• Observation of Colossal Terahertz Magnetoresistance and Magnetocapacitance in a Perovskite Manganite
• The Future of the Correlated Electron Problem
• High-Field Terahertz Spin Resonance in Cr${}_2$O${}_3$ above the Spin-Flop Transition