Abstract
The absorption Coefficient and the interband Faraday rotation of EuS, EuSe, and EuTe thin films have been measured as a function of the photon energy (1-6 eV), the temperature (2.7-300 K), and the applied magnetic field (0.1-11.5 kOe). From the Faraday rotation (FR) we compute the circular magnetic dichroism and from both and the optical constants n and k we derive the imaginary part of the off-diagonal elements of the complex conductivity tensor Im σ xy . Integral values of the latter depend on the spin polarization of electronic states and permit a distinction between pd and fd transitions.
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