Bukhanko A. Magnetooptical effects in layered structures with a noncollinear magnetizations of layers

The dissertation is devoted to processes of the transmission and reflection of light by a ferromagnetic structure with a noncollinear orientation of the magnetization vectors of layers and layer with a regular magnetic inhomogeneity. The magnetooptical characteristics of this structures are shown to significantly depend on the angle between the magnetization vectors of layers and on the the magnetization rotation angle. For the calculation of the magnetooptical characteristics a matrix method was used, in particular, Lagrange-Sylvester theorem. The dependences of magnetooptical characteristics on the angle between the magnetization vectors of layers are asymmetric in relation to the sign of the angle between the magnetization vectors of layers. Wіth an increase in the angle of incidence, the amplitude of the dependence of the reflection coefficient on the angle between the magnetization vectors of layers increases. The obtained curves demonstrate the presence of essential nonreciprocity of the optical properties, which stronger for polarization characteristics of waves than the amplitude characteristics and for the reflected light than for transmitted light. There exist dependence of the magnetooptical characteristics on direction of roundabout way of the ellipse of polarization in incident wave. For the case of the normal incidence of light analytical expressions are obtained for all basic magnetooptical characteristics of structure with a noncollinear orientation of the magnetization vectors of layers and for normal modes of media with regular magnetic inhomogeneity.