Observation of inter-edge magnetoplasmon mode in a degenerate two-dimensional electron gas

Details Observation of inter-edge magnetoplasmon mode in a degenerate two-dimensional electron gas Observation of inter-edge magnetoplasmon mode in a degenerate two-dimensional electron gas

2004-07-07

arxiv.org/abs/cond-mat/0407153v1

Phys. Rev. Lett., vol. 93, p. 196801 (2004)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 4 figures, submitted

Scientific paper

10.1103/PhysRevLett.93.196801

We study the propagation of edge magnetoplasmons by time-resolved current measurements in a sample which allows for selective detection of edge states in the quantum Hall regime. We observe two decoupled modes of edge and inter-edge magnetoplasmons at filling factors close to 3. From the analysis of the propagation velocities of each mode the internal spatial parameters of the edge structure are derived.

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