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Microwave photoresponse in the 2D electron system caused by intra-Landau level transitions

S. I. Dorozhkin·J. H. Smet·V. Umansky·K. von Klitzing
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Abstract

The influence of microwave radiation on the DC-magnetoresistance of 2D-electrons is studied in the regime beyond the recently discovered zero resistance states when the cyclotron frequency exceeds the radiation frequency. Radiation below 30 GHz causes a strong suppression of the resistance over a wide magnetic field range, whereas higher frequencies produce a non-monotonic behavior in the damping of the Shubnikov-de Haas oscillations. These observations are explained by the creation of a non-equilibrium electron distribution function by microwave induced intra-Landau level transitions.

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S. I. Dorozhkin, J. H. Smet, V. Umansky, K. von Klitzing. 2004-09-09. Microwave photoresponse in the 2D electron system caused by intra-Landau level transitions. https://doi.org/10.1103/physrevb.71.201306

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