Iñarrea Las Heras, Jesús2021-01-252021-01-252017-07-01Iñarrea, J. Terahertz-Induced Magnetoresistance Oscillations in High-Mobility 2D Electron Systems Under Bichromatic and Multichromatic Excitation. Journal of Elec Materi 46, 3862–3866 (2017)0361-5235https://hdl.handle.net/10016/31763In this work, we investigated the magnetotransport under terahertz radiation in high-mobility two-dimensional electron systems, focusing on irradiation by bichromatic and multichromatic terahertz sources. We observed strong modulation of the Shubnikov-de Haas oscillations at sufficient terahertz radiation power. We determined that the origin of the modulation was the interference between the average distance advanced by the scattered electrons between irradiated Landau states and the available initial density of states at a certain magnetic field. In the case of multifrequency illumination, we found that with the appropriate frequencies, the irradiated magnetoresistance could reach an almost zero-resistance state regime even at moderate radiation power.eng© 2017 The Minerals, Metals & Materials SocietyMagnetoresistanceTerahertzTwo-dimensional electronsZero-resistance statesElectromagnetic-wave excitationGaas/algaas heterostructuresGasPhotoconductivityresearch articleFísicahttps://doi.org/10.1007/s11664-017-5285-3open access386273866Journal of Electronic Materials46AR/0000020135