Observation of the logarithmic dispersion of high-frequency edge excitations

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

Research output: Contribution to journalArticlepeer-review

16 Scopus citations


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 magnetoplasmons.

Original languageAmerican English
Pages (from-to)R13397-R13400
JournalPhysical Review B - Condensed Matter and Materials Physics
Issue number20
StatePublished - 1997
Externally publishedYes

Bibliographical note

Funding Information:
We wish to acknowledge useful discussions with D. Orgad, and comments from V.I. Talyanskii and G. Ernst. This work was supported by the Israel Science Foundation founded by the Israeli Academy of Science and Humanities.


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