Skip to content

Observation of the logarithmic dispersion of high frequency edge excitations

N. Q. Balaban, U. Meirav, Hadas Shtrikman, V. Umansky

cond-matarXiv:cond-mat/9702110

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.

Create a lesson