Anharmonic behavior in Microwave-driven resistivity oscillations in Hall bars

Details Anharmonic behavior in Microwave-driven resistivity oscillations in Hall bars Anharmonic behavior in Microwave-driven resistivity oscillations in Hall bars

2007-06-10

arxiv.org/abs/0706.1367v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

3 pages, 2 figures. Accepted in Applied Physics Letters

Scientific paper

10.1063/1.2751585

We analyzed the magnetoresistivity of a two-dimensional electron system excited by microwave radiation in a regime of high intensities and low frequencies. In such a regime, recent experiments show that different features appear in the magnetoresistivity response which suggest an anharmonic behavior. These features consist mainly in distorted oscillations and new resonance peaks at the subharmonics of the cyclotron frequency. We follow the model of microwave-driven electron orbits motion which become anharmonic when the ratio of microwave intensity to microwave frequency is large enough.

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