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Propagation of Electromagnetic Waves for a Rotation of the Magnetic Field from the Faraday to the Voigt Configuration
Author(s) -
Stegmann R.,
Oelgart G.
Publication year - 1980
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2220990110
Subject(s) - faraday effect , condensed matter physics , magnetic field , physics , faraday cage , fermi surface , wave propagation , optics , quantum mechanics , superconductivity
Abstract In a semiconducting bismuth‐antimony alloy, the propagation of electromagnetic waves is observed in the frequency range between 35 and 70 GHz and for temperatures of liquid helium in the total angular range between the Voigt and the Faraday configuration. The comparison with the theoretical dispersion behaviour, where a conductivity tensor corresponding to a tripartite ellipsoidal Fermi surface is utilized, allows a qualitative understanding of the wave propagation. The influence of the redistribution effects of the charge carriers among the individual parts of the Fermi surface in a quantizing magnetic field is essential, and the inaccurate knowledge of the energy level structure makes the comparison between experiment and theory difficult.