Model of formation of inner nanolayers in shear flows of material

We consider a mathematical model for the formation of internal nanocrystal layers in shear flows of material, which is based on the evolution of the Kelvin-Helmholtz instability. The dispersion relation is derived for the linear interaction between finite layers of ideal and viscous fluids. Analysis of the dispersion equation shows that viscosity and thickness of a moving layer play a decisive role in the formation of nanosize waves.     

Magnetization Reversal of Ferromagnetic CoFeB Films and CoFeB/Ta/CoFeB Heterostructures in the Stray Field of Fe/Fe3O4 Nanoparticles

Journal of Experimental and Theoretical Physics - The magnetization reversal of the MgO/CoFeB/Ta/CoFeB/MgO/Ta/GaAs heterostructures and the ultrathin MgO/CoFeB/MgO/Ta/GaAs films with a...     

Derivation of wien's formula

Russian Physics Journal -     

Temperature-induced itinerant electron metamagnetism in intermetallic RCo<Subscript>3</Subscript> compounds

The phenomenon of temperature-induced itinerant electron metamagnetism in a zero external field is of the same nature as the widely investigated metamagnetic transitions induced by magnetic fields (external or internal). Recently, temperature-induced itinerant metamagnetism was discovered in the rareearth intermetallic RCo₃ compounds. Systematic investigations of the RCo₃ series made it possible to determine many specific features of this new phenomenon and to formulate criteria to reveal such transitions in other magnetic materials as well. This paper presents a brief review of the existing works and original results on temperature-induced itinerant-electron metamagnetism in substituted RCo₃ compounds.     

Planning of experiments in the investigation of the fusibility diagrams of two-component systems

Russian Chemical Bulletin -     

Magnetorefractive effect in La<Subscript>0.7</Subscript>Ca<Subscript>0.3</Subscript>MnO<Subscript>3</Subscript> in the infrared spectral range

The reflection and magnetic reflection spectra, magnetic resistance, electrical properties, and equatorial Kerr effect in La_0.7Ca_0.3MnO₃ crystals have been complexly investigated. The measurements have been performed in wide temperature and spectral ranges in magnetic fields up to 3.5 kOe. It has been found that magnetic reflection is a high-frequency response in the infrared spectral range to the colossal magnetore-sistance near the Curie temperature. Correlation between the field and temperature dependences of the magnetic reflection and colossal magnetoresistance has been revealed. The previously developed theory of the magnetorefractive effect for metallic systems makes it possible to explain the experimental data at the qualitative level. Both demerits of the theory of the magnetorefractive effect in application to the magnets and possible additional mechanisms responsible for the magnetic reflection are discussed.     

Modeling of the structure and electronic spectra of green fluorescent protein chromophore

The structure and electronic absorption spectra of a model green fluorescent protein chromophore were studied in the neutral, cationic, and anionic forms in the isolated state. The energies of S ₀-S ₁ vertical transitions were calculated using a new method based on a modified multiconfiguration quasi-degenerate perturbation theory (aug-MCQDPT2). This method was used to obtain quantitative estimates of S ₀-S ₁ vertical transition energies for chromophores in the isolated state, 2.54, 3.12, and 3.11 eV (the experimental values were 2.59, 3.05, and 2.99 eV) for the anionic, cationic, and neutral forms, respectively.