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Information × Registration Number 0214U008996, 0112U001009 , R & D reports Title The theory of sound and spin waves in the vicinity of phase transitions in the lattice. popup.stage_title Head Baryaktar V, Registration Date 22-12-2014 Organization Institute of magnetism of NASU popup.description2 The system of dynamic magnetoacoustic equations was constructed. The dispersion laws of coupled magnetoacoustic waves in magnetically ordered materials of different symmetry were calculated. The analysis of obtained dispersion laws in the vicinity of the spin-pereorientatsiynih phase transitions was performed. An assessment of the impact of external factors and the aging process on the elastic modules of magnetically ordered materials was provided. The influence of mechanical and thermal cycling on the elastic modules of the Ni-Mn-Ga alloy was considered. It is shown that the process of cycling leads to destabilization of martensitic phase, and to the decreasing of the shear elastic modulus of martensitic phase. Product Description popup.authors Ба ряхтар В.Г. Данилевич О.Г. Косогор А.О. Львов В.А. popup.nrat_date 2020-04-02 Close