Abstract
The effect of a longitudinal magnetic field in electroacoustic absorption is studied in this paper in the extreme quantum limit, when only the lowest Landau level of the electrons is occupied. The magnetic field enters the theory through its effect on the electronic relaxation time. The case of relaxation times as given by acoustic-phonon scattering has been fully solved analytically, while for ionized-impurity scattering, numerical integrations are necessary. Numerical examples are shown and discussed.
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