This article is cited in 10 papers

CONDENSED MATTER

Aharonov-Bohm effect for plasmons in a finite-width quantum ring

V. M. Kovalev, A. V. Chaplik

Institute of Semiconductor Physics of SB RAS

Abstract: The magnetoplasma oscillation frequencies of the 2D electrons in a quantum ring have been found taking into account the finite width of the ring in the model allowing for an exact solution for the single-particle spectrum. It is shown that instead of the periodic oscillations of the plasmon frequency ω typical of the 1D ring, ω in the case under consideration depends on the magnetic flux with the frequency and amplitude modulations: the period of oscillations as a function of the magnetic flux and their amplitude depend on the magnetic field strength.

PACS: 73.20.Dx

Received: 21.10.2009

 English version: Journal of Experimental and Theoretical Physics Letters, 2009, 90:10, 679–682

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