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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
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.