Abstract
Excitation of helicon modes is discussed for the plasma which is composed of degenerate electron gas and bounded by an infinitely long cylinder. Static magnetic field is given parallel to the axis of cylinder. Even for high magnetic field diagonal elements of the dielectric tensor can not be neglected in the dispersion relations unlike in the case for infinite medium. They give quantum effects in low temperature and the electric field shows strong damping and oscillatory behavior with magnetic field. Numerical calculations are carried out with appropriate values of physical quantities, InSb being chosen as a most favorable example.
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