Zobrazeno 1 - 10
of 73
pro vyhledávání: '"R. V. Vedrinskii"'
Publikováno v:
JETP Letters. 98:130-133
The reflection X-ray spectra have been studied experimentally and theoretically in the case of the grazing incidence of radiation on the plane surface and walls of the channels of microchannel plates. The fine structure of the X-ray spectra, as well
Publikováno v:
Journal of Structural Chemistry. 52:176-180
Full multiple scattering in the cluster approximation with semiempirical MT potential was used for thorough investigation of the near-edge fine structure of Ti and O K spectra from PbTiO3, BaTiO3, CaTiO3 and SrTiO3 crystals. The calculated spectra we
Autor:
V. M. Raznomazov, A. P. Kovtun, D. A. Sarychev, R. V. Vedrinskii, V. O. Ponomarenko, N. M. Novikovskii, Yu. I. Velichko
Publikováno v:
Inorganic Materials. 47:1569-1573
An X-ray fluorescent spectrometer with total X-ray reflection and minimum detection limit by zinc of n · 10−10 g is developed that allows performing analysis of elements from magnesium to uranium. This spectrometer is used to determine the element
Autor:
A. V. Kozinkin, Ya. V. Zubavichus, A. A. Novakovich, Alexey Veligzhanin, Yu. A. Kozinkin, R. V. Vedrinskii
Publikováno v:
Physics of the Solid State. 53:1-5
The K X-ray absorption near-edge fine structure spectra of metallic Cu, Ni, Co (hexagonal close-packed and face-centered cubic phases), and Cr have been studied. The experimental spectrum of cobalt has been measured in the high-temperature face-cente
Publikováno v:
Journal of Structural Chemistry. 49:1-18
The full multiple scattering procedure using the extended continuum approximation and the single semiempirical muffin-tin (MT) potential gave X-ray emission spectra and the CrK absorption spectrum of Cr(CO)6, which were in good agreement with experim
Autor:
V.L. Kraizman, A. A. Novakovich, Jean-Michel André, Elena O. Filatova, E. Yu. Taracheva, A. J. Tvaladze, R. V. Vedrinskii
Publikováno v:
Journal of Physics: Condensed Matter. 16:4597-4606
The reflection spectra of a hexagonal CdS crystal in the region of S K-absorption edge were studied both experimentally and theoretically. It was found that the reflection spectrum fine structure as well as the absolute value of reflectivity of the c
Publikováno v:
X-Ray Spectrometry. 32:3-7
Simple equations are obtained which enable one to describe x-ray propagation through single crystals in an anomalous scattering range when Bragg diffraction does not take place and the angle between the initial x-ray wave and crystal surface signific
Autor:
Sh. M. Elyafi, Th. Kirchner, V.L. Kraizman, G. Dräger, S. Bocharov, R. V. Vedrinskii, A. A. Novakovich
Publikováno v:
physica status solidi (b). 226:203-217
Polarized Ni K XANES of single crystal NiO is studied experimentally and theoretically for two crystal orientations relative to the polarization and wave vectors of incident X-ray beam. The spectra calculated by the full multiple scattering method fo
Publikováno v:
Bulletin of the Russian Academy of Sciences: Physics. 72:431-433
The near-edge structure of the Ti K-edge absorption spectra was calculated for BaTiO3, SrTiO3, and CaTiO3 crystals by the full multiple scattering method. The results obtained are in agreement with the experimental data. The numerical experiment reve
Publikováno v:
Journal of Physics: Condensed Matter. 10:9561-9580
A complete interpretation is proposed for the pre-edge fine structure (PEFS) of the x-ray Ti K-absorption spectra for perovskite structure crystals. The interpretation is based on the results of numerous calculations performed by a modified full mult