Multiphoton microwave photoresistance in a high-mobility two-dimensional electron gas

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

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

28 Scopus citations


We report on experimental and theoretical studies of microwave-induced resistance oscillations in a two-dimensional electron gas over a wide range of microwave intensities. We observe a distinct crossover from linear to sublinear power dependence of the oscillation amplitude and a concomitant narrowing of the oscillation extrema. To explain our observations we propose a theory based on the quantum kinetic equation at arbitrary microwave power. Taken together, these findings demonstrate a crucial role of multiphoton processes at elevated microwave intensities.

Original languageAmerican English
Article number241302
JournalPhysical Review B - Condensed Matter and Materials Physics
Issue number24
StatePublished - 6 Dec 2011
Externally publishedYes


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