New type of $B$-periodic magneto-oscillations in a two-dimensional electron system induced by microwave irradiation

Details New type of $B$-periodic magneto-oscillations in a two-dimensional electron system induced by microwave irradiation New type of $B$-periodic magneto-oscillations in a two-dimensional electron system induced by microwave irradiation

2003-12-11

arxiv.org/abs/cond-mat/0312285v1

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.

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