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Information × Registration Number 0214U001017, 0111U001306 , R & D reports Title Study of electro-magneto-mechanical nanosystems based on antiferromagnets and multiferroics popup.stage_title Head Gomonay Olena, Registration Date 14-01-2014 Organization The National Technical University of Ukraine "Kiev Polytechnical Institute"; Institute of Technical Physics popup.description2 First, based on the general principles of magnetic dynamics and conservation laws proved the possibility of spin torque transfer antiferromagnetic materials. The spectra of the spin waves and the amplitude-frequency characteristics of the various magnet systems with a complex structure in the presence of spin-polarized current. Predicted spin-diode effect, which is the rectification of the AC due to the magnetoresistance oscillations caused by spin-polarized current. The behavior of the magnetic structure of amorphous wires under the influence of the AC external magnetic field and mechanical stresses . Identified the physical mechanism responsible for the observed shift values jump field magnetoresistance under the influence of external mechanical stresses. First implemented generalization of the theory of Brownian motion vector for AFM AFM nanoparticles and, based on first obtained kinetic equations to describe the dynamics of collinear antiferromagnet in the presence of noise. It is shown that unlike ferromagnetic increase in current leads to an increase in the quality factor of the oscillator. First constructed a phenomenological model to describe the shape effects in the AFM , which takes into account: a) the surface magnetic anisotropy energy , which depends on parameters such form as the angle between the axes of the sample and crystallographic axes and eccentricity b) long-range field magnetoelastic nature. A study of the magnetic structure of multilayer systems based on a strong exchange interaction at the interface and the first given an interpretation of phenomena associated with the formation of the domain structure in a thin inclined (relative to the axis of bayasa) field. For the study of complex structural systems in the presence of high-density current developed a model describing the dynamics of inhomogeneous states (including the domain boundaries ) in synthetic magnetic materials with different (ferro- and antiferromagnetic) ordering.5481 Product Description popup.authors Кондович Світлана Валентинівна Кравцов Олег Васильович Малюк Лариса Володимирівна popup.nrat_date 2020-04-02 Close