In What Magnetic Field Does an Edge Magnetoplasmon Arise?

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Abstract

The behavior of magnetoplasmon modes in high-quality two-dimensional electron systems based on AlGaAs/GaAs heterostructures with a disk mesa is studied by the optical detection method for resonant microwave absorption. A magnetic field at which a two-dimensional skin layer is formed along the edge of a two-dimensional electron system and, as a result, the magnetoplasma mode becomes an edge mode has been determined by analyzing the magnetodispersion dependence. The dependence of this magnetic field on the two-dimensional electron density is studied. A model has been developed to describe the reported experimental results.

About the authors

V. M. Murav'ev

Osipyan Institute of Solid State Physics, Russian Academy of Sciences

Email: muravev_vm@mail.ru
142432, Chernogolovka, Moscow region, Russia

A. M. Zarezin

Osipyan Institute of Solid State Physics, Russian Academy of Sciences

Email: muravev_vm@mail.ru
142432, Chernogolovka, Moscow region, Russia

P. A. Gusikhin

Osipyan Institute of Solid State Physics, Russian Academy of Sciences

Email: muravev_vm@mail.ru
142432, Chernogolovka, Moscow region, Russia

I. V. Kukushkin

Osipyan Institute of Solid State Physics, Russian Academy of Sciences

Author for correspondence.
Email: muravev_vm@mail.ru
142432, Chernogolovka, Moscow region, Russia

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