Physics – Condensed Matter – Mesoscale and Nanoscale Physics
Scientific paper
2003-12-11
Phys. Rev. Lett. 92, 236803 (2004)
Physics
Condensed Matter
Mesoscale and Nanoscale Physics
5 pages, 5 figures
Scientific paper
10.1103/PhysRevLett.92.236803
We observe a new type of magneto-oscillations in the photovoltage and the longitudinal resistance of a two-dimensional electron system. The oscillations are induced by microwave irradiation and are periodic in magnetic field. The period is determined by the microwave frequency, the electron density, and the distance between potential probes. The phenomenon is accounted for by coherent excitation of edge magnetoplasmons in the regions near the contacts and offers perspectives for the development of new tunable microwave and terahertz detection schemes and spectroscopic techniques.
Akimov Yu. M.
Aleiner Igor L.
Fal'ko Vladimir. I.
Klitzing Klaus von
Kukushkin I. V.
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