Edgemagnetoplasmons in a partially screened two-dimensional electron gas

POSTER

Abstract

We report a study of edgemagnetoplasmons in a partially-screened system of electrons on a helium surface. We compare experimental results with theories of Fetter and of Mikhailov and Volkov on the frequency, damping, and penetration-depth dependence on magnetic field, temperature-dependent damping, and the dependence of the frequency on screening. We show explicitly the dependence of frequency on edge density profile.

*Supported in part by NSF grant DMR-0071622.

Authors

  • A.J. Dahm

    • Case Western Reserve University

  • M.I. Goksu

    • Truman State University

  • Mokyang R. Kim

    • Califormnia State University-Dominguez Hills

  • K.A. Mantey

    • University of Illinois