Extremely low-energy collective modes in a quasi-one-dimensional topological system

Extremely low-energy collective modes in a quasi-one-dimensional topological system

We have investigated the quasiparticle dynamics and collective excitations in the quasi-one-dimensional material ZrTe5 using ultrafast optical pump-probe spectroscopy. Our time-domain results reveal two coherent oscillations having extremely low energies of ħω1 ∼0.33 meV (0.08 THz) and ħω2 ∼1.9 meV...

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Bibliographic Details
Main Authors: Cheng, L. (Author), Jiang, Z. (Author), Qi, J. (Author), Su, Y. (Author), Wei, Z. (Author), Weng, H. (Author), Zhang, S. (Author), Zhou, H. (Author)
Format: Article
Language:English
Published: Science Press (China) 2022
Subjects:
amplitude mode
Charge density
charge density waves
Charge density waves
Charge-density-waves
Collective excitations
Collective modes
Dynamics
Lower energies
Optical pumping
Quasi-one dimensional
Quasi-one-dimensional
Quasiparticle dynamics
Tellurium compounds
Temperature
Terahertz spectroscopy
Topological systems
Topology
Ultra-fast
Ultrafast quasiparticle dynamic
ultrafast quasiparticle dynamics
Zirconium compounds
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