Marat. Fatihovich. Bulatov

Giredmet Federal State Research and Design Institute of Rare-Metal Industry | Giredmet · institute

Magneto-optical (MO) structures are widely used for different application in the fields of magnetoplasmonics, magneto-optics, photonics e.t.c. Bi-substituted iron garnet (Bi:IG) is high-performance MO material. Integration of Bi:IG films to silicon semiconductor technology gives new opportunities to create nanoscale hight performance MO devices. Va...

Magneto-optics, magnetophotonics and magnetoplasmonics stay at the edge of scientific interests last years due to their unique features to manage the light and electromagnet field. Bi-substituted iron garnet (Bi:IG) is one of most promising magneto-optical material for these applications in order to its high efficiency in visible and infrared spect...

The influence of surface energy on the thermodynamic properties in two-dimensional magnets is considered. It was found that upon the transition from bulk to two-dimensional samples, the contribution of the surface component of energy becomes significant. The thermodynamic parameters of a low-dimensional magnet under conditions of surface resonance...

Improving the ways of magnetic structure investigation with the lowest possible resolution is important in the study and practical implementation of fundamental magnetism. Here we discuss one of the most modern magneto-optical method of domain structure (DS) imaging, scanning near-field magneto-optical microscopy (SNMOM), and propose the new techno...

Scanning probe microscopy (SPM) is a widely used method for the different kind of objects investigation. It allows to obtain information about the surface topography including its mechanical and electromagnetic characteristics at nano scale. SPM also could be used for manipulation of nanoobjects. The most popular and widely used SPM methods are ato...

Thermomagnetic recording on thin films is currently one of the most promising methods for copying records with high density and weak magnetization. These films can be characterized by a couple of parameters very suitable for recording reconfigurable magnetic atomic traps whose geometry is visible. Different types of materials are investigated to be...

Magneto-optical microscopy is a well-known and widely used method of magnetic domain structure investigation. Spatial resolution is limited by diffraction limit of the light and practically not exceed 0.5μm. Possibility to overcome diffraction limit by combination of magneto-optical microscopy and magnetic-force microscopy was showed earlier [1]. A...

A family of normal mode spectra of hierarchically organized ensembles of identical interconnected oscillators with different topology of the organization is constructed. It is shown that treelike ensembles possess a devil’s-staircase-type fractal spectrum of normal modes; the number of degenerate modes increases with an increase in the number of tr...

Ferrite garnets have special physical properties associated with the valence of obtained ions. These properties can be studied only by precise structural analysis and the determining the ions' valency.

Multigraphene films are prepared by the CVD method. The number of multigraphene layers is determined using the Auger spectrometry and Raman spectroscopy. Flake-like regions with sizes of the order of 30 μm are characterized by the least number of layers (2–3 layers).

We found conditions of the synthesis, and obtained samples of the substituted yttrium iron garnet (YIG) ceramic system Y3-cCacFe5O12 with the submicron grain sizes of ∼500 nm. We established the conditions for obtaining, and investigated the ultra-fine powders of YIG doped with the divalent impurities of calcium, which had an average particle size...

The sequence of changes, in the cationic and anionic sublattice states in the (TmBiCa)3(FeGa)5O12 system grown using liquid-phase epitaxy on [111] Gd3Ga5O12 substrates as the calcium concentration varies, is suggested. There are critical values of bivalent impurity: at low concentrations (approximately up to 0.2 at %), Fe4+ is formed; at intermedia...

Artificial microinhomogeneities were created in iron-garnet (TmBiCa)3(FeGa)5O12−γ films with various degrees of oxygen nonstoichiometry, changes in the individual magnetic characteristics of these inhomogeneities were tracked during chemical oxidation and reduction, and the interactions of these inhomogeneities with planar domain walls and spiral d...

This paper describer methods permitting the determination of the magnetic dipole moments of volume microdefects in thin films with a perpendicular anisotropy. The methods are based on the study of solitary defect interactions with a stripe domain, a flat wall in a gradient magnetic field, and with a bubble. Mathematical models of these interactions...