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

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

2004-09-09

arxiv.org/abs/cond-mat/0409228v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 5 figures

Scientific paper

10.1103/PhysRevB.71.201306

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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