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The authors consider optical stationary magnetization of a two-dimensional electron liquid by circularly polarized terahertz waves. The liquid is coupled to radiation via a periodic array of conducting nanospheres forming… Click to show full abstract
The authors consider optical stationary magnetization of a two-dimensional electron liquid by circularly polarized terahertz waves. The liquid is coupled to radiation via a periodic array of conducting nanospheres forming a resonant plasmonic coupler. The circularly polarized wave excites ``twisted'' plasmonic oscillations that are rectified due to hydrodynamic nonlinearity. As a result, the entire liquid turns into a vortex state with circulating dc current. The stationary magnetic field induced by this current reaches tens of gauss for a radiation field of the order of 105 V/cm.
Journal Title: Physical Review B
Year Published: 2020
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