Nonlinear response of microwave-irradiated two-dimensional electron systems near the second harmonic of the cyclotron resonance

A. T. Hatke, M. A. Zudov, L. N. Pfeiffer, K. W. West

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20 Scopus citations

Abstract

Recent experiments on microwave-irradiated high-mobility two-dimensional electron systems revealed a novel photoresistivity peak in the vicinity of the second cyclotron resonance harmonic. Here we report on the nonlinear transport measurements and demonstrate that the peak can be induced by modest dc fields and that its position is not affected even by strong dc fields, in contrast to microwave-induced resistance oscillations that shift to higher magnetic fields. These findings reinforce the notion that the peak cannot be described by existing models and provide important constraints for further theoretical considerations.

Original languageEnglish (US)
Article number201301
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume83
Issue number20
DOIs
StatePublished - May 2 2011

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