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Information × Registration Number 0220U100154, 0118U001127 , R & D reports Title Generation, Detection and Processing of Electromagnetic Squares of the Microwave and Terahertz Ranges in Magnetic Nanostructures popup.stage_title Head Prokopenko Oleksandr V., Registration Date 10-01-2020 Organization Taras Shevchenko National University of Kyiv popup.description2  Object of study - linear and nonlinear phenomena that occur when the interaction of electromagnetic signals of different power and different frequency ranges with structured and disordered magnetic media (separate spintron magnetic nanostructures and their arrays, metamaterials based on magnetic, metallic and magnetic lines) nanoparticles). The purpose of the work is to study the processes of generation, detection and conversion of electromagnetic signals of microwave, terahertz and optical ranges in magnetic nanosystems for the development of appropriate new methods of generation, detection and transformation of signals, development of the physical basis of the latest technologies and development of electrodynamic devices of general and dual purpose. Research methods - theory of magnetostatic and dipole-exchange spin waves, analytical calculations in packages Mathematica, Matlab and numerical calculations in packages of micromagnetic modeling OOMMF, mumax, nmag, MicroMagus, muMAG, radiospectroscopic technique, technique of mass spectrometry types of magnetostatic and dipole-exchange spin waves in ferrite films, nonlinear FMR technique, method of parametric excitation of spin waves by parallel pumping, methods of cutting-edge optics, etc. Studies on the generation and detection of electromagnetic signals in the terahertz range can be performed with using femtosecond laser pulses and superconducting Josephson contacts. A significant effect of the geometric dimensions of the tunnel barrier on the efficiency of signal generation in the antiferromagnetic tunnel contact (ATC) Pt / antiferromagnet / MgO / Pt was established. The dynamics of the Hall antiferromagnetic spin oscillator (COX) under the influence of a harmonic signal is analyzed and significant influence is established. the choice of the COX operating point for the efficiency of its synchronization with the external signal. Product Description popup.authors Artemchuk Petro Yu. Bychok Andriy V. Brazschnikov Denis G. Karyachka Vladyslav S. Kravchuk Petro O. Moiseienko Vladyslav A. Nikitenko Artem L. Pylypovskii Oleksandr V. Prokopenko Oleksandr V. Slobodianiuk Denys V. Sulymenko Olga R. Chumak Gregoriy L. Schtanko Oleg V. popup.nrat_date 2020-04-02 Close