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arXiv · 1605.00430

Undamped relativistic magnetoplasmons in lossy two-dimensional electron systems

V. A. Volkov·A. A. Zabolotnykh
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Abstract

We address electrodynamic effects in plasma oscillations of a lossy 2D electron system whose dc 2D conductivity is comparable to the speed of light. We argue that the perpendicular constant magnetic field B causes astonishing features of magnetoplasma dynamics. We show that plasmon-polariton spectra can be classified using a 'relativistic' phase diagram 2D conductivity divided by the speed of light versus B. An extraordinarily low damping branch in magnetoplasmon-polariton spectra emerges at two phases of this diagram. Some magnetoplasmons at these phases are predicted to be undamped waves.

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V. A. Volkov, A. A. Zabolotnykh. 2016-10-12. Undamped relativistic magnetoplasmons in lossy two-dimensional electron systems. https://doi.org/10.1103/physrevb.94.165408

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