On the propagation of electromagnetic waves in the tetrathiafulvalene family of organic conducting salts

The propagation of electromagnetic waves is investigated theoretically in organic layered conductors with metallic conductivity in magnetic fields strong enough that the characteristic radius of curvature of a conduction-electron orbit is much smaller than its mean-free path l. It is shown that when groups of charge carriers with quasi-two-dimensional and quasi-one-dimensional energy spectra coexist in such a material, the penetration depth of the waves into it, which is a strong function of the polarization of the waves and the orientation of the magnetic field, also has an interesting dependence on the magnitude of the magnetic field and the low-dimensionality parameters of the charge-carrier spectra. This property makes it possible to recover details of the Fermi surface from the experimental data.

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