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VOLUME 77 (2003) | ISSUE 10 | PAGE 681
Giant magnetoresistance oscillations caused by cyclotron resonance harmonics
PACS: 73.40.-c, 73.43.-f
Abstract
For high-mobility two-dimensional electrons at a GaAs/AlGaAs heterojunction, we have studied, both experimentally and theoretically, the recently discovered giant magnetoresistance oscillations with nearly zero resistance in the oscillation minima which appear under microwave radiation. We have proposed a model based on nonequilibrium occupation of Landau levels caused by radiation which describes the oscillation picture.