Certain magnetic materials have optical properties that make them attractive for a wide variety of applications such as optical switches. This book describes the physics of one class of such magnetooptic materials, the insulating antiferromagnets. The authors summarize recent results concerning the structure, optical properties, spectroscopy, and magnetooptical properties of these materials. In particular, they consider magnetic phase transitions, symmetry effects, the linear magnetooptical effect, magnons, spectroscopic study of spin waves, photoinduced magnetic effects, and the effects of impurities.
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ISBN-13
978-1-4612-2846-2 (9781461228462)
DOI
10.1007/978-1-4612-2846-2
Schweitzer Klassifikation
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.
