Faraday effect in nanogranular Co-Sm-O films

The Faraday effect (FE) was studied in Co-Sm-O composite films consisting of nanoparticles of metallic cobalt embedded in a samarium oxide dielectric matrix. The volume of the magnetic phase was ～60%. The FE spectral dependence for the condensates studied revealed a substantial change as compared to that for bulk cobalt samples, as well as for the films of nanocrystalline Co and CoSm films prepared in this study. An enhancement of the FE was also observed in the short-wavelength part of the optical spectrum.     

Mechanism of mercury monomethyl cation detoxication in the interaction with 1-chloro-2,2-propane dithiol

The potential interaction surface between polyhydrated monomethyl mercury cation and 1-chloro-2.2-propane dithiol has been studied by quantum chemical methods. The system generates the hydroxonium cation due to the interaction, which is a demethylating agent for methylmercury. The total thermal balance of the demethylation reaction is 244.5 kJ/mol, the activation energy of the limiting stage in the process has a value of 39.1 kJ/mole.     

On the effect ofBUM generation enhancement revealed using the scheme of additional heating of ionospheric plasma

We present measured characteristics of the artificial ionospheric radio emission (AIRE), which were obtained experimentally using additional heating of the ionospheric F-region by O-polarized waves. It is shown that the observed enhancement of intensity of the broad upshifted maximum (BUM) of the AIRE can result from the influence of electrons accelerated in the plasma: esonance region on its generation. An empirical model of the phenomenon observed is developed. It is concluded from experimental results that the BUM has a complex structure and only one of its components produces the above emission enhancement. We show the possibility of using the AIRE in additional heating of ionospheric plasma for diagnostics of artificial ionospheric turbulence and investigation of the features of perturbation propagation along the geomagnetic field lines. Radiophysical Research Institute, Nizhny Novgorod, Russia. Institute of Space Physics, Uppsala, Sweden. The Naval Research Laboratory, Washington, D.C. Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Radiofizika, Vol. 40, No. 5, pp. 561–585, May, 1997.     

Nanocrystalline cobalt films prepared under ultrafast condensation conditions

The magnetic and electrical properties and the temperature dependence of these properties of cobalt films prepared at high condensation rates (10⁵–10⁶ Å/s) are investigated. Incremented annealing reveals several nonequilibrium states of cobalt in transition from the asprepared metastable structure to the ordinary hcp structure. The anomalies of the properties are analyzed from the standpoint of the nanocrystalline state of the samples. Model concepts of microcluster formations in the investigated films are also discussed.     

Lagrangian BRST quantization and unitarity

V. A. Steklov Mathematics Institute, USSR Academy of Sciences. Translated from Teoreticheskaya i Matematicheskaya Fizika, Vol. 85, No. 3, pp. 323–348, December, 1990.