Magnetoplasmon resonance in two-dimensional fluctuating superconductors

K. Sonowal*, V. M. Kovalev, I. G. Savenko

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


We develop a theory of the magnetoplasmon resonance (MPR) in two-dimensional superconductors in the fluctuating regime, where the temperature is slightly above the critical temperature of the superconducting transition. In this regime, unpaired electrons and fluctuating Cooper pairs coexist in the system and interact with each other via long-range Coulomb forces, forming a Bose-Fermi mixture. The sample is considered to be under the influence of an external time-dependent electromagnetic field with a frequency in sub-terahertz range and a permanent magnetic field. It is shown that the MPR of the system is strongly modified in the presence of superconducting fluctuations in the vicinity of the superconducting transition. In particular, the fluctuating Cooper pairs dramatically change the broadening of the MPR, which is reflected in the optical response of the system.

Original languageEnglish
Article number093009
JournalNew Journal of Physics
Issue number9
StatePublished - Sep 2021
Externally publishedYes


  • magnetoplasmons
  • superconducting fluctuations
  • transition metal dichalcogenides


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