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  • Letter
  • Open Access

Optical Shubnikov–de Haas oscillations in two-dimensional electron systems

M. L. Savchenko1, J. Gospodarič1, A. Shuvaev1, I. A. Dmitriev2, V. Dziom3, A. A. Dobretsova4, N. N. Mikhailov4, Z. D. Kvon4, and A. Pimenov1

  • 1Institute of Solid State Physics, Vienna University of Technology, 1040 Vienna, Austria
  • 2Terahertz Center, University of Regensburg, 93040 Regensburg, Germany
  • 3Institute of Science and Technology Austria, 3400 Klosterneuburg, Austria
  • 4Institute of Semiconductor Physics, 630090 Novosibirsk, Russia

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Phys. Rev. Research 6, L022027 – Published 2 May, 2024

DOI: https://doi.org/10.1103/PhysRevResearch.6.L022027

Abstract

We report on dynamic Shubnikov–de Haas (SdH) oscillations that are measured in the optical response, subterahertz transmittance of two-dimensional systems, and reveal two distinct types of oscillation nodes: “universal” nodes at integer ratios of radiation and cyclotron frequencies and “tunable” nodes at positions sensitive to all parameters of the structure. The nodes in both real and imaginary parts of the measured complex transmittance are analyzed using a dynamic version of the static Lifshitz-Kosevich formula. These results demonstrate that the node structure of the dynamic SdH oscillations provides an all-optical access to quantization- and interaction-induced renormalization effects, in addition to parameters one can obtain from the static SdH oscillations.

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Phys. Rev. Research 6, L022027– Published 2 May, 2024
  • Received 10 August 2023
  • Accepted 11 April 2024
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Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.

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