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Propagation of High‐Frequency Electromagnetic Waves in the Voigt Configuration through Samples of Bi at 45, 70, and 300 GHz
Author(s) -
Braune W.,
Lebech J.,
Saermark K.
Publication year - 1978
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.2220870216
Subject(s) - electromagnetic radiation , cyclotron , physics , wave propagation , computational physics , acoustics , optics , plasma , nuclear physics
Abstract Experimental results on the propagation of very high frequency electromagnetic waves through Bi are presented. The experiments at the frequencies 45 and 300 GHz are performed at 4.2 K on a sample of thickness d = 0.89 mm, and the experiments at 70 GHz are performed at 1.4 K on a sample of thickness d = 1.3 mm. The waves observed propagating through the samples are of the cyclotron wave type. It is pointed out that a satisfactory theoretical understanding of the wave phenomena can only be hoped for if realistic numerical calculations, including all ellipsoids of the Bi Fermi surface and a finite ωτ value, are carried out.