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Article
Laser-Synchrotron Facility of the National Research Centre “Kurchatov Institute”
The laser-synchrotron facility (LSF) of the National Research Centre “Kurchatov Institute” (NRC KI) is a unique research complex that combines unprecedented possibilities of a cutting-edge rapidly develo** f...
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Article
Formation of Metastable Phase Si(III) in Silicon Exposed to Femtosecond Laser Radiation
Silicon crystals exposed to near-IR femtosecond laser pulses have been investigated by X-ray diffraction. It is shown that a high-power laser impact on silicon with a pulse energy of 0.79 mJ leads to the forma...
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Article
High-Precision Characterization of Super-Multiperiod AlGaAs/GaAs Superlattices Using X-Ray Reflectometry on a Synchrotron Source
The morphology of supermultiperiod Al0.3Ga0.7As/GaAs superlattices grown by molecular-beam epitaxy has been determined using X-ray reflectometry (including the one on a synchrotron source) and photoluminescence. ...
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Article
Structural and Chemical Transformations of Ruthenium, Cobalt, and Iron Clathrochelates Used as Electrocatalysts for a Hydrogen Evolution Reaction in a Water Electrolyzer
The structural evolution of three electrocatalytic systems for hydrogen evolution reaction using iron, cobalt, and ruthenium(II) clathrochelate complexes as catalysts in a water electrolyzer is studied by X-ra...
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Article
Polarization and Interference Effects in the Resonant Diffraction of Synchrotron Radiation
The features of the technique of resonant synchrotron-radiation (SR) diffraction are considered. The energy, angular, polarization, and temperature dependences of Bragg reflections at incident radiation energi...
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Article
Magnetic and Superconducting Properties of the Heterogeneous Layered Structures V/Fe0.7V0.3/V/Fe0.7V0.3/Nb and Nb/Ni0.65(0.81)Cu0.35(0.19)
The heterogeneous ferromagnetic–superconducting layered heterostructures V/Fe0.7V0.3/V/Fe0.7V0.3/Nb and Nb/Ni0.65(0.81)Cu0.35(0.19), which contain magnetic clusters and ferromagnetic domains, are studied. The mag...
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Article
Accurate Calculation of Geodetic Heights of a Celestial Body’s Surface Points Relative to the Triaxial Ellipsoid
The approximation of the Earth’s physical surface by a mathematical surface is commonly carried out by a sphere or an ellipsoid of revolution. A triaxial ellipsoid can be used in some cases. The geodetic heigh...
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Article
Magnetic Dichroism in the Reflectivity of Linearly Polarized Synchrotron Radiation from a Ti(10 nm)/Gd0.23Co0.77(250 nm)/Ti(10 nm) Sample
The dichroic effect (“rotated” polarization) in the reflectivity from a magnetically ordered sample is experimentally studied at the station PHASE of the Kurchatov Synchrotron Radiation Source. The experiments...
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Article
Magnetism in structures with ferromagnetic and superconducting layers
The influence of superconductivity on ferromagnetism in the layered Ta/V/Fe1–x V x /V/Fe1–x V x ...
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Article
Cylindrical projection conformality of triaxial ellipsoid
It is proved that the projection of a triaxial ellipsoid with rectilinear meridians orthogonal to the rectilinear equator cannot be strictly conformal. The proof is based on the fact that due to the degenerati...
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Article
X-ray topography of a crystal of tetragonal lysozyme
A crystal of the tetragonal modification of lysozyme grown under controlled conditions with in situ monitoring of the growth kinetics and morphology of the (110) face is studied by X-ray topography using synch...
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Article
Precision structural diagnostics of layered superconductor/ferromagnet nanosystems V/Fe by reflectometry and diffuse scattering of synchrotron radiation
Layered superconducting ferromagnetic nanosystems Cu(32 nm)/V(40–80 nm)/Fe(0.5–4 nm)/MgO(001) have been investigated by reflectometry and the diffuse scattering of synchrotron radiation. The data obtained make...
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Article
“Forbidden” reflections in resonant diffraction of synchrotron radiation in yttrium aluminum garnet Y3Al5O12
The purely resonant Bragg reflections (13, 13, 0) and (14, 0, 0) in yttrium aluminum garnet Y3Al5O12 at energies near the K absorption edge of yttrium have been studied experimentally and theoretically. The aniso...
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Article
Web-oriented geoinformation system on alien plant species of European Russia
An open geoinformation system (GIS) Alien Plant Species of European Russia under construction is presented. The system is based on a database on species finds. The database includes information on species nome...
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Article
Resonant diffraction of synchrotron radiation in rubidium dihydrophosphate crystals
Purely resonant Bragg reflections 006, 5 \( \bar 5 \) 0, and 666 in a rubidium dihydrophosphate (RbH2PO4) crystal at th...
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Article
Coexistence of superconductivity and ferromagnetism in the Nb(500 Å)/Fe(39 Å)/[Si(34 Å)/Mo(34 Å)]40/Si nanostructure
The results of polarized neutron reflectometry investigations of the magnetic state of the Nb(500 Å) superconductor-57Fe(39 Å) ferromagnet-Si(34 Å)/Mo(34 Å)]40 superconductor nanostructure in the temperature rang...
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Article
Localization of an ultrathin buried Fe layer in a multilayer structure Nb/Fe/[Mo/Si]40/SiO2 by means of X-ray standing waves
An analysis of the influence of standing waves on the angular dependencies of the fluorescent yield from an ultrathin iron layer buried inside a multilayer structure of Nb(50 nm)/Fe(3.9 nm)/[Si/Mo(6.77 nm)]40/SiO
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Article
Radiation defect clustering in graphite studied by synchrotron radiation scattering
The formation of radiation defect clusters as interstitial dislocation loops in pyrographite irradiated by 20-MeV carbon ions in a cyclotron has been studied by means of synchrotron radiation scattering. The e...
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Article
Absolute intensity and phase of the resonant X-ray scattering from a germanium crystal
The 222 and 600 reflections near the germanium absorption K edge were studied on the Kurchatov synchrotron radiation source. The energy spectrum of the 222 reflection is caused by the interference of the weak non...
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Article
X-ray topography of diamond crystals in quasi-forbidden reflections
The X-ray topographs of diamond crystals of different perfection degrees have been obtained using the quasiforbidden 222 reflection. It has been shown that the use of such reflections in X-ray topography makes...
