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Information × Registration Number 0214U006187, 0112U002700 , R & D reports Title Orientational phenomena at scattering of charged particles by domain structures of magnetics and influence of point defects on the remagnetization of the latter popup.stage_title Head Bespalova Svetlana, Registration Date 17-02-2014 Organization Donetsk National University popup.description2 Effect of parameters of thin uniaxial magnetic films (TMF) with a stripe domain structure (SDS) and initial energy of an electron beam on the scattering of the latter with extreme deflections in the polar plane has been studied. The initial orientations of the beam in respect of the domain boundaries (DB), corresponding to the extreme deflection of the scattered electrons, have been found for different particle energies and SDS parameters. The energy dependence of the critical angle for surface channeling along the DB of the SDS has been found as well. The analytical expression for this angle as a function of parameters of a system of film with the SDS and the beam has been derived. This expression is in good consistence with the results of numerical experiments. The beam initial orientations for electrons scattering of a TMF with hexagonal magnetic bubble lattice, resulting in orientational effects for different initial energies, have been determined. The equations of the Fokker-Planck type for the DB distribution function, considering the interaction of the magnetization with thermal oscillations in a defects subsystem, have been derived in a framework of adiabatic exception of fast variables. A steady state of the domain structure in films with randomly distributed small defects has been found. The spectral density of magnetic noise in a TMF with random point defects has been determined. A mutual dependence between spectral density of magnetic noise, DB resonance frequency and coercivity field of the material has been elucidated. Product Description popup.authors Васильєв Олександр Васильович Васько Олена Ігорівна Легенький Юрій Анатолійович Піменов Юрій Миколайович Сірюк Юлія Андріївна Тарасова Ольга Олегівна Фінохін Віктор Іванович Чернякова Ольга Володимирівна popup.nrat_date 2020-04-02 Close