Magneto-Optics and Spectroscopy of Antiferromagnets

1 Magneto-Optic Effects in Non-Centroantisymmetrical Antiferromagnetic Crystals.- 1.1. Symmetry of the Optical Properties of Magnetically Ordered Crystals.- 1.2. Symmetry of the Linear Magneto-Optic Effect (LMOE).- 1.3. Light Polarization Transformation at Magneto-Optic Effects, and Specific Features of Experimental Method.- 1.4. Experimental Investigations of the Linear Magneto-Optic Effect.- 1.5. Magnetic Gyrotropy Quadratically Dependent on Magnetic Field Strength.- 2 Magneto-Optical Methods for Investigating the Structure of Antiferromagnetically Ordered Crystals.- 2.1. Visualization of Collinear or 180-Degree Antiferromagnetic Domains.- 2.2. Magnetic Structure of the Antiferromagnetic Calcium—Manganese—Germanium (CaMnGe) Garnet.- 2.3. The Antiferromagnetic Domains and Two-Phase Magnetic Structures in DyFeO3.- 3 Optical Magnetic Excitations.- 3.1. The Exciton Description of Magnetic Excitations.- 3.2. The Mechanism of Magnetic Excitation Generation by Light.- 3.3. Multiquantum Excitation of Two-Particle Transitions.- 3.4. Dynamics of Magnetic Excitons.- 3.5. Radiation Decay of Magnetic Excitons.- 4 Magnetic Excitons as a Method of Study of the Magnetic Properties of Antiferromagnets.- 4.1. Spectroscopic Studies of Spin Waves.- 4.2. Magnetic Excitons as an Instrument to Investigate the Magnetic Configurations of Antiferromagnets.- 4.3. Photoinduced Magnetic Effects.- 5 Delocalization of Impurity Excitations in Antiferromagnetic Insulators.- 5.1. Localized States (Single-Impurity Approximation).- 5.2. Localization and Delocalization States in the Anderson and Lifshitz Models.- 5.3. Coherent and Incoherent Impurity Excitations. Impuritons.- References.