CONDENSED MATTER

Universal broadening of cyclotron absorption in Dirac semimetals

R. V. Turkevich^a, A. P. Protogenov^bacd, E. V. Chulkov<sup>dbe

a</sup> Lobachevsky State University of Nizhny Novgorod, Nizhny Novgorod, Russia
^b Donostia International Physics Center (DIPC), San Sebastian/Donostia, Basque Country, Spain
^c Institute of Applied Physics, Russian Academy of Sciences, Nizhny Novgorod, Russia
^d Tomsk State University, Tomsk, Russia
^e Departamento de Física de Materiales UPV/EHU, Centro de Física de Materiales CFM – MPC and Centro Mixto CSIC-UPV/EHU, San Sebastian/Donostia, Spain

Abstract: The absorption of electromagnetic radiation in Dirac semimetals in a quantizing magnetic field has been considered. A universal broadening of the collisionless cyclotron damping line of electromagnetic waves at a decrease in the number of filled Landau levels has been revealed. New regimes of the propagation of electromagnetic waves and new accompanying effects have been found.

Received: 12.12.2019
Revised: 12.12.2019
Accepted: 25.12.2018

DOI: 10.1134/S0370274X19050072

 English version: Journal of Experimental and Theoretical Physics Letters, 2019, 109:5, 316–319

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