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Information × Registration Number 0214U005296, 0112U001912 , R & D reports Title Spectrum and damping of collective waves in magnetic materials near phase transitions. popup.stage_title Head Baryakhtar, Registration Date 25-12-2014 Organization Institute of magnetism of NASU popup.description2 The theory that describes the effect of magnetoelastic interaction on the elastic properties of shape memory materials in the vicinity of phase transitions of various types was constructed. It is shown that the magnetoelastic interaction depends on the direction of the magnetic moment of the ferromagnet and the direction of the wave vector of the collective oscillations. The phenomenon of a sharp decrease in the elastic modules of materials with shape memory effect on approaching the martensitic phase transitions was theoretically explained. Also, a theoretical explanation of the experimental temperature dependence of the elastic modulus of materials in the paramagnetic-ferromagnetic state transition was proposed. A consistent theory of description of dissipative phenomena in magnetic materials was constructed. The spin waves dispersion laws ferromagnets with different symmetry were obtained with accounting of damping of both relativistic and exchange nature. Product Description popup.authors Бар'яхтар В.Г. Данилевич О.Г. Данилевич О.Й. Духота Л.І. Калькута С. А. Косогор А.О. Кубишта Л.С. Лежненко І. В. Львов В.А. Черненко М.А. popup.nrat_date 2020-04-02 Close