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Observation of the logarithmic dispersion of high frequency edge excitations

N. Q. Balaban·U. Meirav·Hadas Shtrikman·V. Umansky
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Abstract

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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N. Q. Balaban, U. Meirav, Hadas Shtrikman, V. Umansky. 1997-02-12. Observation of the logarithmic dispersion of high frequency edge excitations. https://doi.org/10.1103/physrevb.55.r13397

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