Observation of the logarithmic dispersion of high frequency edge excitations

Details Observation of the logarithmic dispersion of high frequency edge excitations Observation of the logarithmic dispersion of high frequency edge excitations

1997-02-12

arxiv.org/abs/cond-mat/9702110v1

Physics

Condensed Matter

12 pages, Postscript only, 4 Postscript figures

Scientific paper

10.1103/PhysRevB.55.R13397

We report phase sensitive measurements of microwave propagation through a high mobility two dimensional electron gas subjected to a perpendicular magnetic field. Two types of configurations were used, one that allows all wave vectors q, and one that selects only specific q values. The spectrum of edge excitations was studied over a broad frequency span, which allowed us to observe the logarithmic dispersion of edge magneto-plasmons.

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