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Information × Registration Number 0203U000148, 0100U003229 , R & D reports Title Cooperative effects in ensembles of magnetic nanoparticle popup.stage_title Head Denisov Stanislav Ivanovich, Registration Date 21-01-2003 Organization Sumy State University popup.description2 The aim of the work is theoretical study of the role which magnetic dipolar interaction plays in forming the magnetic properties of ensembles of ferromagnetic nanoparticles. The subject of research is cooperative effects in ensembles of ferromagnetic nanoparticles conditioned by the dipolar interaction of nanoparticle magnetic moments. Methods of investigation: methods of mathematical physics, methods of statistical physics, stochastic methods, methods of numerical simulation. The main scientific results of the work are: 1) the vibration spectrum of nanoparticle magnetic moments in two-dimensional ensembles, and the conditions of stability of their uniform distribution; 2) the mean-field theory of dipolar ordering of magnetic moments of non-spherical nanoparticles in three-dimensional ensembles; 3) the fluctuation theory of thermal magnetic relaxation in two-dimensional ensembles of nanoparticles with perpendicular anisotropy; 4) a new method of numerical simulation of magnetic relaxation. The resultsof the work can be used at working out of storage devices where the ferromagnetic nanoparticles are the information carriers. Product Description popup.authors popup.nrat_date 2020-04-02 Close