Analysis of ferromagnetic structures fast-acting under the influence of external magnetic fields of various intensity

Research is focused on fast processes in radioelectronic devices using ferromagnetic materials when electromagnetic fields of various intensity affect them. Ways of accelerating the processes for increasing microwave equipment fast-action are considered. 3-D and 2-D ferromagnetic materials characteristics are analyzed to improve MRAM technology which arose from memory on magnetic cores and which is implemented on thin magnetic films. Multiferroics domain structure is considered, radiophysical processes in nonlinear ferromagnetic environment (nonlinear parametrical resonance, generation and amplification of electromagnetic oscillations) are investigated. Transient processes duration in nonlinear parametrical zonal systems (NPS) working at current ultraharmonics in highest zones of oscillations instability is considerably reduced and tends to zero because of abrupt phase transition. Due to this, fastaction of NPS devices is increased considerably, even if traditional 3-D ferromagnetic materials are used to devices fabricating. Thin-film structures fast-action increases still more and take nanoseconds, that allows upgrading MRAM technology as nanotechnology.