Magnetooptic Spectroscopy of EuS, EuSe, and EuTe

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 e V), 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 1m Oxy. Integral values of the latter depend on the spin polarization of electronic states and permit a distinction between pd and fd transitions. Copyright © 1976 by The Institute of Electrical and Electronics Engineers, Inc.