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arXiv · 1810.08024

Time-resolved magneto-Raman study of carrier dynamics in low Landau levels of graphene

Tomasz Kazimierczuk·Aleksander Bogucki·Tomasz Smoleński·Mateusz Goryca·Clément Faugeras·Paweł Machnikowski·Marek Potemski·Piotr Kossacki
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Abstract

We study the relaxation dynamics of the electron system in graphene flakes under Landau quantization regime using a novel approach of time-resolved Raman scattering. The non-resonant character of the experiment allows us to analyze the field dependence of the relaxation rate. Our results clearly evidence sharp increase in the relaxation rate upon the resonance between the energy of the Landau transition and the G-band and shed new light on relaxation mechanism of the Landau-quantized electrons in graphene beyond the previously studied Auger scattering.

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Tomasz Kazimierczuk, Aleksander Bogucki, Tomasz Smoleński, Mateusz Goryca, Clément Faugeras, Paweł Machnikowski, Marek Potemski, Piotr Kossacki. 2018-10-18. Time-resolved magneto-Raman study of carrier dynamics in low Landau levels of graphene. https://doi.org/10.1103/physrevb.100.075401

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