Indirect Exchange Interaction Fields in Magnetic Nanogranular Films

Authors Yu.I. Dzhezherya , A.F. Kravets , I.M. Kozak , A.Ya. Vovk, A.M. Pogorily

Institute of magnetism, National Academy of Sciences of Ukraine, Vernadsky 36b, 03142 Kyiv, Ukraine

Issue Volume 6, Year 2014, Number 2
Dates Received 14 May 2014; published online 20 June 2014
Citation Yu.I. Dzhezherya, A.F. Kravets, I.M. Kozak, et al., J. Nano- Electron. Phys. 6 No 2, 02027 (2014)
PACS Number(s) 75.70.Cn, 75.75. + a, 71.70.Gm, 75.30.Et, 83.80.Fg
Keywords Magnetic nanogranular films, Magnetization (18) , Indirect exchange interaction, Indirect exchange interaction field, Structural percolation.
Annotation The investigation results of the influence of non-magnetic matrix conducting properties on the magnetization process of magnetic nanogranular films are presented. Effective field in the films with conductive matrix influences the properties of the magnetic subsystem and facilitates the establishment of magnetic correlation in the ensemble of ferromagnetic granules. Polarization of the electron subsystem leads to the appearance of the exchange interaction between magnetic moments of the nearest magnetic granules. One can state about initiation of indirect exchange interaction in the case when the field of indirect exchange will exceed the value of local magnetostatic fields.

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