科研之友
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摘要
We address electrodynamic effects in plasma oscillations of a lossy 2D electron system whose dc 2D conductivity sigma(0) is comparable to the speed of light c. 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 sigma(0)/c 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.
- 出版日期2016-10-10
