H. Vivas C., C. Vargas-Hernández
The r\^{o}le of the magnetoelectric effect upon optical reflectivity is studied by adapting an electrodynamic-based model for a system composed by a 2D metallic film in contact with an extended multiferroic material exhibiting weak ferromagnetism. The well-known \emph{Nakayama's} boundary condition is reformulated by taking into account the magnetoelectric coupling as well as an externally applied magnetic field $\mathbf{B}$ in arbitrary direction. It is found that the relative reflectance shows strong fluctuations for in-plane $\mathbf{B}$ -fields and might be controllable under its azimuthal rotation in the THz regime, in particular, close to the antiferromagnetic resonance frequency associated to the multiferroic slab.
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http://arxiv.org/abs/1303.5296
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