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Registration Number

0205U006662, 0103U000181 , R & D reports

Title

Development of physical basis for creation of magnetic superlattices in heterogeneous films

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Head

Pogoriliy A,

Registration Date

09-12-2005

Organization

Institute for Magnetism of NASU

Description

The methods of creation of the ensemble of monodisperse magnetic nanoparticles have been developed; the ways for governing their properties have been found and the key parameters, which define their space ordering, are determined. The availability of the use of nanogranular magnetic metal-dielectric multilayers as the medium for magnetic recording is shown. The concentration range where the superparamagnetic-ferromagnetic transition occurs is specified. The factors, which define the magnetic state of such a systems, are cleared up. The phase diagram in coordinates of magnetic element concentration - temperature is built. Thickness dependence of the effective anisotropy field and interlayer interactions is investigated. The features of the proceeding of relaxation phenomena and behavior of nonlinear electrical and magnetoresistive effects are cleared up.5635

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