Physics – Condensed Matter – Mesoscale and Nanoscale Physics
Scientific paper
2009-12-07
Phys. Rev. Lett. 104, 206801 (2010)
Physics
Condensed Matter
Mesoscale and Nanoscale Physics
4 pages, 3 figures
Scientific paper
10.1103/PhysRevLett.104.206801
We report on magneto-oscillations in differential resistivity of a two-dimensional electron system subject to intense microwave radiation. The period of these oscillations is determined not only by microwave frequency but also by its intensity. A theoretical model based on quantum kinetics at high microwave power captures all important characteristics of this phenomenon which is strongly nonlinear in microwave intensity. Our results demonstrate a crucial role of the multi-photon processes near the cyclotron resonance and its harmonics in the presence of strong dc electric field and offer a unique way to reliably determine the intensity of microwaves acting on electrons.
Chiang H.-S.
Hatke A. T.
Khodas M.
Pfeiffer Loren N.
Vavilov Maxim G.
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