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Information × Registration Number 0216U008314, 0115U003536 , R & D reports Title Development and study of magnetic and magnetoelectric elements of devices on the basis of multilayered composite ferrite-piezoelectric structures popup.stage_title Head Dzhezherya, Registration Date 27-12-2016 Organization Institute of magnetism of NASU popup.description2 The inhomogeneous magnetic configurations and their effect on the dynamic properties of ferromagnetic films with spatially modulated parameters were studied by theoretical physics methods in the present report. On the basis of the magnetization dynamics equations, the Landau-Lifshitz equations, the features of the interphase wall formation at the conditions of the spatial modulation of the anisotropy constant on the film thickness were described, and the resonance of oscillations of this wall in an alternating magnetic field was studied. It is shown that the resonance phenomena occur in a narrow field range and is very sensitive to the direction of an external magnetic field. Such a system can naturally be used as a highly sensitive and highly directional magnetic field detector. The second chapter is devoted to the study of magneto-mechanical properties of the shape memory materials of 83,75Cu-12,4Al-3,85Mn type. The aim of the investigations carried out in the work was the study of the dependences of magnetic and mechanical characteristics of the alloy on the influence of pre-magnetic annealing at the formation of the system of nanoscale magnetic particles. The third chapter is devoted to the study of the character of nonlinear stationary waves localization in the system with two potential holes in the cases of linear and nonlinear media in the holes, as well as their linear and nonlinear environment. Such an approach in the analytical study of localized states in inhomogeneous systems with plane defects in some cases makes it possible to obtain more accurate results than in the case of -function potentials. All the possible exact solutions of the nonlinear Schr?dinger equation in this system at the conditions of continuity of the wave function and its first derivative at the boundaries of the holes and their environment were found. The obtained results can be useful for the study of localized states in systems with interfaces in many areas of physics, in particular, in the study of magnetic layered media. Product Description popup.authors Герасимчук І.В. Джежеря Ю.І. Тітенко А.М. Хіст В.В. Хребтов А.О. ЧереповС.В. popup.nrat_date 2020-04-02 Close