Surface polaritons in finite weakly disordered superlattice with dissipation

Author

Bludov, Y.V.

Author_Institution

Usikov Inst. for Radiophys. & Electron., Nat. Acad. of Sci., Kharkov, Ukraine

fYear

2001

fDate

18-20 Sep 2001

Firstpage

62

Lastpage

65

Abstract

The paper deals with the theoretical investigation of surface polaritons (SP) in a finite weakly disordered superlattice (WDSL). The WDSL is considered to be made of the finite number of parallel two-dimensional electron systems (2DES). We suppose that the Landau-level filling factor ℵ is equal in all 2DES except one 2DES whose Landau-level filling factor is equal to ℵ_d. The external quantizing magnetic field is supposed to be directed perpendicularly to 2DES. It is found that when the dissipation in 2DES is taken into account the additional surface polariton (ASP) appears in the spectrum of SP. The effect of ASP disappearing when ℵ_d exceeds some critical value and the effect of separating of the ASP dispersion curve from the usual SP with the increase of ℵ_d are predicted

Keywords

magnetic fields; polaritons; semiconductor superlattices; surface electromagnetic waves; Landau-level filling factor; additional surface polariton; dispersion curve; dissipation; finite weakly disordered superlattice; quantizing magnetic field; spectrum; surface polaritons; two-dimensional electron systems; Application specific processors; Dispersion; Effective mass; Electrons; Filling; Frequency; Magnetic fields; Magnetic superlattices; Neodymium; Semiconductor superlattices;

fLanguage

English

Publisher

ieee

Conference_Titel

Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory, 2001. DIPED 2001. Proceedings of the 6th International Seminar/Workshop on

Conference_Location

Lviv

Print_ISBN

966-02-1876-1

Type

conf

DOI

10.1109/DIPED.2001.965035

Filename

965035