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Composition Dependence of the Maximum Cyclotron Mass m 1 c in n‐Type Semiconducting Bi 1– x Sb x
Author(s) -
Fellmuth B.,
Krüger H.,
Rudolph R.,
Herrmann R.
Publication year - 1981
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.2221040122
Subject(s) - cyclotron , dispersion relation , electron , dispersion (optics) , atomic physics , attenuation , physics , cyclotron resonance , helium , magnetic field , effective mass (spring–mass system) , condensed matter physics , analytical chemistry (journal) , materials science , chemistry , nuclear physics , optics , quantum mechanics , chromatography
The propagation of magnetoplasma waves in the configuration B ‖ C 2 ‖ k is measured for a number of n‐type semiconducting Bi 1– x Sb x alloys (0.07 < x < 0.14) at frequencies of 41 and 70 GHz and helium temperatures. The attenuation behaviour and a comparison between the experimental and the theoretical dispersion of the waves yield a rapid increase of the maximum cyclotron mass m 1 c with increasing x , which by far exceeds the variation of the low cyclotron mass m 2 c . Under the given conditions, the results obtained are largely independent of the dispersion relation of the electrons, which is used in the description of the wave dispersion in a quantizing magnetic field.