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ISSN Druckformat: 0040-2508
ISSN Online: 1943-6009
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SLOW WAVES IN A PERIODIC STRUCTURE WITH MAGNETOACTIVE SEMICONDUCTOR LAYERS
ABSTRAKT
Specific features shown by zonal spectra of a periodic structure with magnetoactive semiconductor layers in the vicinity of its characteristic frequencies in the submillimeter wavelength range are investigated theoretically. The analysis technique is presented. It is shown that the surface wave phase velocity in a thin-layer periodic structure with a transverse configuration of the external magnetic field can assume magnitudes comparable with the drift velocity of charge carriers in the semiconductor. Thus, the slowing factor for waves in a periodic structure with nano-layers made of celsian ceramics and n-InSb exceeds 103 at the temperature of liquid nitrogen and magnetic fields 0.25 to 1 T. Physically, the wave slowdown effect is associated with the existence of a transmission zone at lower frequencies which allows moving over the dispersion curve into the range of great magnitudes of the wavenumber for small periods of the thin-layer periodic structure.