Nonlinear dynamics of coupled systems near magnetic phase transitions of the “order-order” type

Nonlinear dynamics of coupled systems near magnetic phase transitions of the “order-order” type

The results are reviewed of the 15-year development of the concept of effective anharmonicity of the normal modes that describe the vibrations of a continuous medium having two or more mutually coupled subsystems. Magnetoelastic interaction near a spin reorientation phase transition leads to a giant...

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Veröffentlicht in:Journal of magnetism and magnetic materials 1991, Vol.100 (1), p.544-571
Hauptverfasser: Ozhogin, V.I., Preobrazhenskii, V.L.
Format: Artikel
Sprache:eng
Schlagworte:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Exact sciences and technology
Magnetic properties and materials
Magnetomechanical and magnetoelectric effects, magnetostriction
Physics
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Zusammenfassung:The results are reviewed of the 15-year development of the concept of effective anharmonicity of the normal modes that describe the vibrations of a continuous medium having two or more mutually coupled subsystems. Magnetoelastic interaction near a spin reorientation phase transition leads to a giant acoustic nonlinearity and its magnetic field sensitivity in antiferromagnets such as α-Fe 2O 3, FeBO 3, TmFeO 3, etc.
ISSN:0304-8853
DOI:10.1016/0304-8853(91)90840-7