Polarized light in structures with magnetic ordering

摘要: Modeling of the light interaction in magnetic structures represents a problem optics anisotropic media based on solution Maxwell's equations. Magneto-optic medium is described using permittivity and permeability tensors, however, tensor mostly set to its vacuum value for optical frequencies. The can be expanded into power series as function magnetization components. Linear quadratic effects are characterized by linear magneto-optic respectively. A complexity tensors number independent components reduced including crystal symmetry Onsager's principle. We describe, how ordering affects eigenmode polarizations media. angles dependence discussed details. Quadratic or second-order terms also affect significantly measurement. Particular attention devoted cubic crystals. While properties crystals direction axes, exhibit strong anisotropy. theory was completed an experimental observation effect anisotropy epitaxial Fe layer prepared MgO substrate. influence vector magnetometry general direction.