Abstract
Non-local calculations of the dispersion and damping of electromagnetic waves in bismuth in the presence of a magnetic field B are presented for the two configurations: B//C2, q//C3, ERF//C1 and B//C1, q//C3, ERF//C2. The non-local effects depend significantly on the frequency and on the values of the relaxation times tau e and tau h. Results are presented for the frequencies, 9, 45, 70 and 300 GHz, while in general a 'standard' value of tau c= tau h=5*10-11 s is used as the relaxation time for both types of charge carrier. The method of calculation and the general properties of the dispersion relation are presented. Due to the strong relaxation-time dependence, which requires separate calculations for a specific sample, a comparison with experimental results is here given only as an illustrative example for cyclotron waves at 300 GHz.
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