Foreign atoms or molecules inserted into the layer crystal conduct themselves to a certain extent as independent system preserving almost the same features as before their insertion. Such atoms form monolayer planes in van der Waals gaps. It allows us to consider them as flat nanostructures. So intercalation as a way of nanoplanes formation is caused by i) specific structure of the crystal layer structure, ii) atoms of the most different features particularly 3d-atoms can be inserted.

Presence of the magnetic active clusters in the van der Waals gap supports the Coulomb blockade of the electric current. Besides it creates the conditions of new unique magnetic properties, which serve the base for the new technologies of the medium materials. However crystal lattice should not be considered as completely insensible to such nanostructure. It will have a certain influence on average magnetic moment of the 3d-impurity.

Microscopic description of electron subsystem of layer crystal intercalated by 3d-impurities is based on the Anderson-like Hamiltonian [1]. Within the frame of electron mixing we considered not only structural changes caused by the appearance of intercalante but Coulomb interaction of electrons with opposite spines on the same 3d-atom. Transcendent equation for average number of occupation by electron with spin up and down in site i is obtained. It depends on microscopic energy parameters of crystal lattice and it is determined through integral equation. As the result effects of the magnetic momentum changes depending on the system parameters are analyzed.

1. Lukiyanets B.A., Tovstyuk N.K. Electron density states of intercalated layer crystals // Mol.Phys. Rep. V.23, p.162-166 (1999).

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