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Telecommunications and Radio Engineering
SJR: 0.202 SNIP: 0.2 CiteScore™: 0.23

ISSN Print: 0040-2508
ISSN Online: 1943-6009

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Telecommunications and Radio Engineering

DOI: 10.1615/TelecomRadEng.v63.i5.40
pages 405-417

Edge Magnetoplasmons in a Finite Array of Two-Dimensional Electron Gas Strips

N. N. Beletskii
A. Usikov Institute of Radio Physics and Electronics, National Academy of Sciences of Ukraine 12, Academician Proskura St., Kharkov 61085
Yu. V. Bludov
A. Usikov Institute of Radio Physics and Electronics, National Academy of Sciences of Ukraine 12, Academician ProskuraSt., Kharkov 61085, Ukraine

ABSTRACT

The paper deals with the theoretical investigation of edge magnetoplasmons in an array of two-dimensional gas strips, consisting of a finite number of strips, arranged at an equal distance from each other and placed into an external magnetic field. Two types of arrays of two-dimensional gas strips are under consideration: an ordered array of two-dimensional gas strips with equal electron concentrations in all strips and a weakly disordered array of two-dimensional gas strips, which is characterized by the fact that the electron concentration of one defect strip differs from that of other strips. It is shown, that the edge magnetoplasmon spectrum contains an infinite number of modes, which differ from each other by the distribution of the electromagnetic field applied across the strips. The anomalous dispersion of the edge magnetoplasmons of higher modes in a long-wavelength region is predicted. The existence of edge magnetoplasmon local modes of each kind, properties of which differ from properties of other modes of edge magnetoplasmons, is shown for the case of the weakly disordered array of two-dimensional electron gas strips. In the case where the defect strip is arranged inside the array of strips, the existence of edge magnetoplasmon modes, the frequencies of which do not depend upon the parameters of the defect strip, is predicted.