Zobrazeno 1 - 10
of 16
pro vyhledávání: '"N I Yurasov"'
Publikováno v:
Russian Journal of General Chemistry. 92:2005-2015
Autor:
I. I. Yurasova, N. K. Galkin, A. V. Sinyagin, V. A. Tetyanchuk, A. I. Plokhikh, N. I. Yurasov
Publikováno v:
Russian Journal of Physical Chemistry A. 95:1207-1211
Real-time thermal analysis is used for the synthesis of silica globules. The rate of the reaction of sol synthesis is determined. The reaction order is found, depending on the concentration of water, and the kinetic and diffusion regions are identifi
Publikováno v:
Proceedings of the VIII International Conference "Science and Society - Methods and Problems of Practical Application".
Publikováno v:
Journal of Physics: Conference Series. 1348:012082
The globular photonic crystal of artificial opal was synthesized by Stœber process in order to study its internal structure. Two methods were used to measure density and to determine porosity, which was 0.368. A fractal model of pores formation was
Autor:
N. I. Yurasov
Publikováno v:
Solid State Phenomena. :109-112
The spin-orbital subsystem model with electron clusters was used for studying the frequency spectra ferromagnetic resonance (FMR). A new type of ferromagnetic order and new region of FMR were found. The new region may be in the microwave region or in
Autor:
P. P. Sverbil, Yu. P. Voinov, M. I. Samoilovich, V. V. Gryaznov, Vladimir S. Gorelik, N. I. Yurasov
Publikováno v:
Inorganic Materials. 45:1013-1017
We have studied the optical properties of opal photonic crystals infiltrated with the M0.35Zn0.65Fe2O4 (M = Ni, Co) ferrites. The crystals consisted of amorphous SiO2 nanospheres. The visible reflectivity spectra of the crystals were used to determin
Autor:
Vladimir S. Gorelik, G. A. Emel’chenko, N. I. Yurasov, Vladimir M. Masalov, Yu. P. Voinov, V. V. Gryaznov
Publikováno v:
Inorganic Materials. 45:645-650
We analyze broadband visible reflectivity spectra of opal photonic crystals annealed in an argon atmosphere and air. Scanning electron microscopic examination has shown that the crystals consist of close-packed spheres with a mean diameter in the ran
Publikováno v:
Solid State Phenomena. :518-521
Results of optical properties investigations of photonic crystals, filled by ferrites, are presented. The photonic crystals consist of amorphous SiO2 spherical nanoclusters. Pores of the crystals were filled by ferrites , where . Reflectance spectra
Publikováno v:
Bulletin of the Lebedev Physics Institute. 34:176-181
The spatial distribution of the intensity of light reflected from the surface of a globular photonic crystal prepared on the basis of artificial opal was studied. Using a CCD array as a selective radiation receiver and a special computer program, ref
Publikováno v:
Inorganic Materials. 41:1185-1188
Fe-based particles were produced in pores of photonic crystals consisting of amorphous silica nanospheres via infiltration with a ferrocene solution in diethyl ether, followed by pyrolysis. Magnetooptic characterization of the modified material indic