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Helicon Waves in Semiconducting Bi 1− x Sb x Alloys
Author(s) -
Herrmann R.,
Oelgart G.,
Krüger H.,
Haefner H.
Publication year - 1974
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.2220630208
Subject(s) - helicon , magnetic field , condensed matter physics , dispersion (optics) , materials science , field (mathematics) , displacement current , current (fluid) , dispersion relation , displacement (psychology) , atomic physics , physics , optics , thermodynamics , psychology , mathematics , quantum mechanics , pure mathematics , psychotherapist
Investigations are made of helicon wave propagation in semiconducting BiSb alloys. The measurements were carried out at measuring frequencies between 28 and 40 GHz and at a temperature of 4.2 K in magnetic fields between 0 and 15 kG. The obtained charge‐carrier concentrations are in very good agreement with the values obtained from the direct‐current Hall effect. The influence of the displacement current on the dispersion of helicon waves is evidenced. Finally the angle dependence of the field values of the spatial resonances is discussed, which results when the magnetic field is rotated out of the direction of the surface normal.