We report on a remarkably strong, and a rather sharp, photoresistance peak originating from a dimensional magnetoplasmon resonance (MPR) in a high mobility GaAs/AlGaAs quantum well driven by microwave radiation into a zero-resistance state (ZRS). The analysis of the MPR signalreveals a negative background providing experimental evidence for the concept of absolute negative resistance associated with the ZRS. When a system is further subject to a dc field, the maxima of microwave-induced resistance oscillations decay away and a system reveals a state with close-to-zero differential resistance. The MPR peak, on the other hand, remains essentially unchanged, indicating surprisingly robust Ohmic behavior under the MPR conditions.
@article{arxiv.1203.4781,
title = {Magnetoplasmon resonance in 2D electron system driven into a zero-resistance state},
author = {A. T. Hatke and M. A. Zudov and J. D. Watson and M. J. Manfra},
journal= {arXiv preprint arXiv:1203.4781},
year = {2015}
}
Comments
4 pages, 2 figures; to appear in Phys. Rev. B - Rapid Communications