Abstract
The structural and the compositional dependences of the magneto-optical, the optical and the magnetic properties of Mn1−xFex alloy films have been investigated. It was revealed that the EKE (equatorial Kerr effect) signal at 293 K is observed only for x > 0.50. All the EKE spectra have nearly the same spectral shape (Fe-like) and differ from each other only in intensity. The observed experimental EKE spectra for the Fe-rich Mn1−xFex alloy films are nicely described by the simulated ones made in the framework of effective-medium approximation. The optical properties, such as optical conductivity, of all the investigated alloys can be separated into three groups which correspond to different crystalline structures: predominance of the α-Fe (0.8 < x < 0.97), the γ-Mn-Fe (0.2 < x < 0.6) and the α-Mn (0.02 < x < 0.23) phases, respectively.
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