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Magnetoplasma effects in semiconducting Bi 1– x Sb x alloys
Author(s) -
Oelgart G.,
Herrmann R.
Publication year - 1975
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.2220720232
Subject(s) - microwave , cyclotron resonance , materials science , condensed matter physics , absorption (acoustics) , anomaly (physics) , resonance (particle physics) , helium , dielectric , magnetic field , liquid helium , field (mathematics) , cyclotron , atomic physics , physics , optoelectronics , composite material , quantum mechanics , pure mathematics , mathematics
The magnetic‐field‐dependent microwave absorption is measured in semiconducting Bi 1– x Sb x alloys in the frequency ranges of 36 and 70 GHz at helium temperatures. In addition to cyclotron resonance, tilted orbit resonance ist observed. A theoretical lineshape analysis is carried out. The comparison with the experiment shows good agreement. Moreover the hybrid resonance and the dielectric anomaly are discussed and their influence on the magnetic‐field‐dependent microwave absorption in the present material is investigated. The results can in effect be understood on the basis of a model of the isoenergy surface, which is composed of three ellipsoidal parts. Moreover there are indications of deviation from this model.