Effect of Phase Transformations of a Metal Component on the Magneto-Optical Properties of Thin-Films Nanocomposites (CoFeZr) (MgF).

The results of complex studies of structural-phase transformations and magneto-optical properties of nanocomposites (CoFeZr) (MgF) depending on the metal alloy content in the dielectric matrix are presented. Nanocomposites were deposited by ion-beam sputtering onto glass and glass-ceramic substrate. By studying the spectral and field dependences of the transversal Kerr effect (TKE), it was found that the transition of nanocomposites from superparamagnetic to the ferromagnetic state occurs in the region of ~30 at%, that corresponds to the onset the formation of ferromagnetic nanocrystals CoFeZr with hexagonal syngony in amorphous dielectric matrix of MgF.

Investigations of porous silicon with deposited 3D-metals by Auger- and ultrasoft X-ray emission spectroscopy.

Nanocomposites based on porous silicon (Por-Si) with 3d-metals incorporated into pores can be used as magnetics. Por-Si layers were obtained by anodic etching of n-type silicon (100) with the use of HF solution in alcohol. Fe, Co, Ni galvanic deposition in por-Si was made from aqueous solutions of corresponding sulphates.

Interference phenomena of synchrotron radiation in TEY spectra for silicon-on-insulator structure.

The general matrix theory of the photoelectron/fluorescence excitation in anisotropic multilayer films at the total reflection condition of X-rays has been developed. In a particular case the theory has been applied to explain the oscillation structure of L(2,3) XANES spectra for a SiO(2)/Si/SiO(2)/c-Si sample in the pre-edge region which has been observed by a sample current technique at glancing angles of synchrotron radiation. Remarkably the phase of the oscillations is reversed by a ∼2° angle variation.